41 results about "Process gain" patented technology

A system and method are provided for scanning an optical code, in which an optical code scanner system includes an ambient light sensor having at least one photo sensor for sensing ambient light conditions and generating at least one first electrical signal corresponding to the sensing of the ambient light conditions, and a photo sensor array having a plurality of photo sensors for sensing light reflected from the target being imaged and generating a plurality of second electrical signals corresponding the sensing of the reflected light. The optical code scanner system further includes at least one of exposure circuitry for controlling exposure during the sensing of the reflected light, gain circuitry for processing gain of at least a portion of the plurality of second electrical signals and an illumination assembly for providing illumination for illuminating the target; and a processing circuitry for processing at least a portion of the at least one first electrical signal and controlling at least one of the exposure circuitry, the gain circuitry and the illumination assembly in accordance with the processing of the at least a portion of the at least one first electrical signal.

A data transceiver module for digital data communications in a portable handheld data terminal has multiple data spread spectrum modes which include direct sequence and frequency function modulation algorithms. The transceiver module has multiple user or program configurable data rates, modulation, channelization and process gain in order to maximize the performance of radio data transmissions and to maximize interference immunity. Various module housings, which may be PCMCIA type, are able to be mated with a suitably designed data terminal. Media access control protocols and interfaces of multiple nominal operational frequencies are utilized. Wireless access devices in a cell based network each consider a variety of factors when choosing one of a plurality of modes of wireless operation and associated operating parameters. Such selection defines a communication channel to support wireless data, message and communication exchanges. In further embodiments, the wireless access devices also support a second channel, a busy / control channel, for managing communication on the main communication channel and to overcome roaming and hidden terminal problems. Roaming terminal devices are also configured to support the dual channel design. Such configuration in both circumstances may involve the use of a multimode radio that is timeshared between the two channels or two radios, one dedicated to each channel.

A data transceiver module for digital data communications in a portable hand-held data terminal has multiple data spread spectrum modes which include direct sequence and frequency function modulation algorithms. The transceiver module has multiple user or program configurable data rates, modulation, channelization and process gain in order to maximize the performance of radio data transmissions and to maximize interference immunity. Various module housings, which may be PCMCIA type, are able to be mated with a suitably designed data terminal. Media access control protocols and interfaces of multiple nominal operational frequencies are utilized. Wireless access devices in a cell based network each consider a variety of factors when choosing one of a plurality of modes of wireless operation and associated operating parameters. Such selection defines a communication channel to support wireless data, message and communication exchanges. In further embodiments, the wireless access devices also support a second channel, a busy / control channel, for managing communication on the main communication channel and to overcome roaming and hidden terminal problems. Roaming terminal devices are also configured to support the dual channel design. Such configuration in both circumstances may involve the use of a multimode radio that is timeshared between the two channels or two radios, one dedicated to each channel.

The present invention is directed to a method of forming a mobile network using Phased Array Antennas. Mobile nodes search for nodes with which to form a network by either transmitting low level announcement signals on a wide spoiled beam directional antenna at progressively increasing power levels, or by receiving announcement signals using a high-gain, narrow directional beam. Low power announcements are compensated for by processing gain in the receive modem. Nodes randomly decide at each step of the scan whether to transmit or receive. Two control slots in an epoch are used for neighbor discovery. The first control slot is to announce or receive an announcement, and the second control slot is used to acknowledge the receipt of an announcement packet. The neighbor discovery process uses in-band communications. The directional communications permit simultaneous links in close proximity to other links without interference.

The present invention is directed to obtaining a correct processing result without an inexpedience such as a starvation by having a plurality of processes gain an access in parallel to a resource such as a VRAM. When one of a plurality of processing means requests an exclusive access to a portion of a resource, a lock range processing part 122 permits an exclusive access only when the process does not result in an inexpedience, for example, when other processing means is not permitted to gain an exclusive access to an overlapped portion. Further, the lock range processing part 122 inhibits permission of an exclusive access to other portion overlapping a portion and permits an exclusive access to such portion when the number of permissions of exclusive accesses to other portion overlapping this portion exceeds a given number while an exclusive access to such portion is not permitted. The lock range processing part 122 thus prevents a starvation from occurring by limiting the number of permissions of an exclusive access to other overlapping portion passing a portion which overlaps the other overlapping portion.

A system and technique for calibrating a plurality of radars provides a set of simultaneous equations derived from monostatic echo returns from a plurality of targets. A solution of the simultaneous equations provides relative position calibration factors and time delay calibration factors associated with the plurality of radars. The relative position calibration factors and the time delay calibration factors allow the plurality of radars to be coherently combined with only a small amount of processing gain loss compared with an ideal coherent processing gain.

A system and method for optimized control of an assembly for drilling a borehole comprises a self-tuning, multivariable controller and an optimization engine that manipulates the setpoints of the controller such that drilling performance may be continuously optimized. The method includes evaluation of a characteristic system time constant, using this constant to compute bit ROP, using computed ROP to compute process gains, which are used to tune the multivariable controller, automatically refining controller setpoints based on controller performance, and using an optimization engine to systematically adjust controller setpoints such that drilling parameters are optimized based on any of several performance indicators, or a weighted combination of performance indicators. The method further comprises using at least one performance indicators which may be computed using estimated bit ROP: bit wear parameter; gradient of cost per foot; gradient of bit ROP versus WOB; simplified mechanical specific energy; and hydraulic specific energy.

The frequency spectrum of a transmitter system is spreaded in the transmitter (1) through the codification of information bits by means of sequence pairs of Golay complementary sequences. The spectrum is received in the receiver (2) and is subject to a filter, which is adapted to the features of such sequences enabling the detection of digital levels corresponding to the original transmitted information. If pairs of orthogonal sequences, A amplitudes for moduling data, and N-PSK modulation are used, it is possible to get a transmission speed (C) equal to:Where B is to the null-to-null spread bandwidth used in Hertz. It allows an improvement in quality as compared to other digital-communication systems, which use spread spectrum techniques and CDMA, obtaining a process gain independent of the transmission speed.

A system and method are provided for scanning an optical code, in which an optical code scanner system includes an ambient light sensor having at least one photo sensor for sensing ambient light conditions and generating at least one first electrical signal corresponding to the sensing of the ambient light conditions, and a photo sensor array having a plurality of photo sensors for sensing light reflected from the target being imaged and generating a plurality of second electrical signals corresponding the sensing of the reflected light. The optical code scanner further includes at least one of exposure circuitry for controlling exposure during the sensing of the reflected light, gain circuitry for processing gain of at least a portion of the plurality of second electrical signals and an illumination assembly for providing illumination for illuminating the target; and a processing circuitry for processing at least a portion of the at least one first electrical signal electrical signal and controlling at least one of the exposure circuitry, the gain circuitry and the illumination assembly in accordance with the processing of the at least a portion of the at least one first electrical signal.

The present invention is directed to a method of forming a mobile network using Phased Array Antennas. Mobile nodes search for nodes with which to form a network by either transmitting low level announcement signals on a wide spoiled beam directional antenna at progressively increasing power levels, or by receiving announcement signals using a high-gain, narrow directional beam. Low power announcements are compensated for by processing gain in the receive modem. Nodes randomly decide at each step of the scan whether to transmit or receive. Two control slots in an epoch are used for neighbor discovery. The first control slot is to announce or receive an announcement, and the second control slot is used to acknowledge the receipt of an announcement packet. The neighbor discovery process uses in-band communications. The directional communications permit simultaneous links in close proximity to other links without interference.

The invention discloses a radar pulse compression filter optimization design method applied to random signal waveforms. The method mainly solves the problem of pulse compression filter optimization design under constraint conditions of a main lobe width, processing gain loss and a sidelobe level. The radar pulse compression filter optimization design method includes the steps that firstly, new signal vectors are designed for radar transmitting signal waveforms and the filter length, and a signal matrix is established on the basis of the new signal vectors and is adjusted according to the pulse compression main lobe width at the same time; secondly, the allowable maximum processing gain loss is processed combined with pulse compression to form a constrained optimization equation; finally, the optimal filter coefficient under the constraint conditions is solved and obtained through a convex optimization tool. The optimal sidelobe level can be obtained under the conditions of the given pulse compression filter length, the main lobe width and the processing gain loss, meanwhile the method has the advantage of being irrelevant to signal modes, and the method is applied to signal pulse compression filter design of linear frequency modulation, phase encoding, frequency encoding and the like.

A system and technique for calibrating a plurality of radars provides a set of simultaneous equations derived from monostatic echo returns from a plurality of targets. A solution of the simultaneous equations provides relative position calibration factors and time delay calibration factors associated with the plurality of radars. The relative position calibration factors and the time delay calibration factors allow the plurality of radars to be coherently combined with only a small amount of processing gain loss compared with an ideal coherent processing gain.

The invention discloses a method and device for realizing game traffic estimation. The method includes: predicting and obtaining the predicted value of the holiday to be predicted according to the historical statistical data of the operation of the game business; after obtaining the predicted value of the holiday to be predicted, calculating the difference between the holiday to be predicted in the historical year and other The association relationship between holidays is obtained from the association relationship to obtain the historical holidays associated with the holidays to be predicted; according to the similar historical statistical data of the game business volume, the predicted value of the holiday to be predicted is processed by gain processing, and the predicted value is obtained through the gain processing of the predicted value. Revise the predicted value. Therefore, for the predicted value of the game business volume corresponding to the abnormal operation of the holiday, it is possible to make corrections consistent with the abnormal operation situation corresponding to the holiday based on similar historical statistical data, so that the forecast of the game business volume is in line with the holiday. In a special scenario, there are advantages of high precision and small deviation.

In a method for monitoring a control loop in a process plant, process gain data associated with a control loop may be collected. The collected process gain data may be used to determine an expected process gain behavior. For example, expected values of a process variable for given values of a load variable may be determined. As another example, expected changes in a process variable for given changes in a load variable may be determined. Then, during operation of the control loop, the process gain may be monitored. If the monitored process gain substantially deviates from the expected behavior, this may indicate an abnormal situation associated with the control loop.

The invention relates to an electromagnetic wave measurement while drilling system wireless remote receiving device and a measuring method and application of the electromagnetic wave measurement while drilling system wireless remote receiving device. The electromagnetic wave measurement while drilling system wireless remote receiving device comprises an antenna receiving array and a remote receiving unit which comprises a central processing unit, a control circuit, a wireless receiving and dispatching module and a power supply. The wireless receiving and dispatching module is connected with the central processing unit through the control circuit. The device is used for remotely receiving electromagnetic wave measurement while drilling system signals and used for receiving measurement signals in an electromagnetic wave measurement while drilling system. A digital signal processor (DSP) technology and an array signal processing technology are adopted to achieve suppression of well site noise. Through an array element with a reasonable layout, an advanced digital signal processing algorithm is matched to achieve remote receiving of weak electromagnetic signals, adaptive capacity, to different strata, of the electromagnetic wave measurement while drilling system is effectively improved, processing gain and receiving sensitivity are improved, and measuring depth is improved.

The invention provides an adaptive stochastic resonance weak signal matching detection method and relates to the technical field of signal detection. The method, by analyzing signal-to-noise ratio gain of a stochastic resonance system, obtains the trilateral relationship of noise intensity of a received signal, system barrier height, and pre-processing gain of a received signal under the conditions of optimal resonance so as to maximize the output signal-to-noise ratio of the stochastic resonance system which has fixed parameters by pre-processing the received signal. The noise intensity of the received signal can be estimated through traditional methods. According to the invention, the system has a simple designing method, and is easy to realize, obviates the need for adjusting noise intensity and system parameters, does not need tedious optimization of actual environment. The method is simple and easy. The system parameters have a wide selection range. The method matches all types of frequency band signals by simply and directly adjusting the received signal, and can directly process the received signal. Various detectors can be applied to the obtained output sequence. The method is simple and easy to implement and can be widely applied to related fields of weak signal detection.

A system and method for optimized control of an assembly for drilling a borehole comprises a self-tuning, multivariable controller and an optimization engine that manipulates the setpoints of the controller such that drilling performance may be continuously optimized. The method includes evaluation of a characteristic system time constant, using this constant to compute bit ROP, using computed ROP to compute process gains, which are used to tune the multivariable controller, automatically refining controller setpoints based on controller performance, and using an optimization engine to systematically adjust controller setpoints such that drilling parameters are optimized based on any of several performance indicators, or a weighted combination of performance indicators. The method further comprises using at least one performance indicators which may be computed using estimated bit ROP: bit wear parameter; gradient of cost per foot; gradient of bit ROP versus WOB; simplified mechanical specific energy; and hydraulic specific energy.

The frequency spectrum of a transmission system is spread in the transmitter (I) by information bit encoding by means of Golay complementary sequence pairs. The spectrum is picked up in the receiver (2) and passed through a filter that is adapted to the characteristics of said frequencies enabling detection of digital levels corresponding to the transmitted original information. If eta pairs of orthogonal sequences, A amplitudes for data modulation and N-PSK modulation are used, it is possible to obtain transmission speed (C) which equals formula (I), wherein B is the null-to-null bandwidth used in Hertz. This makes it possible to improve quality in comparison with other digital communication systems using spread-spectrum techniques and CDMA. A process gain independent of transmission speed is obtained.

A method, an apparatus, and logic to post-process raw gains determined by input processing to generate post-processed gains, comprising using one or both of delta gain smoothing and decision-directed gain smoothing. The delta gain smoothing comprises applying a smoothing filter to the raw gain with a smoothing factor that depends on the gain delta: the absolute value of the difference between the raw gain for the current frame and the post-processed gain for a previous frame. The decision-directed gain smoothing comprises converting the raw gain to a signal-to-noise ratio, applying a smoothing filter with a smoothing factor to the signal-to-noise ratio to calculate a smoothed signal-to-noise ratio, and converting the smoothed signal-to-noise ratio to determine the second smoothed gain, with smoothing factor possibly dependent on the gain delta.

The present invention discloses a rapid design method of dilute acetone distillation industry dynamic optimization control layer output constraint. The method comprises a step 1 of solving a gain model of a steady state optimization layer of a model prediction controller aiming at a dilute acetone distillation industry model prediction control system of a double-layer structure; a step 2 of finding out the uncertain elements in a process gain matrix in the gain model; a step 3 of solving the upper boundary and the lower boundary of an output constraint reachable set according to the uncertain elements and the system interference variables; a step 4 of obtaining the dynamic optimization control layer output constraint according to the upper boundary and the lower boundary of the output constraint reachable set. The rapid design method of the dilute acetone distillation industry dynamic optimization control layer output constraint provided by the present invention can effectively solve the problem that the time needed to calculate the upper boundary and the lower boundary of the output constraint reachable set is longer, and the solution speed is influenced by the system dimensions barely.

Random early detection (RED) controlled loss (i.e., discarding data packets) is determined as a function of change in processing gain assigned by a resource management system in a data network having a communications link between first and second network nodes. Rather than triggering RED controlled loss as a function of buffer levels, triggering is determined as a function of change in processing gain caused by, for example, a change in code rate, modulation technique, error (e.g., bit error rate or frame error rate), signal-to-noise ratio (SNR) or carrier-to-interference (C / I) level, or a number of traffic code channels or TDMA slots assigned to the nodes. In a wireless data network, this technique may be deployed in a base station or access terminal. A tight coupling between the physical layer and link layer is provided using this technique.

The present invention solves the quality control problems that exist in manufacturing equipment for sheet form products, that is, although the position correspondence between actuators and measuring points has been measured and switched for every raw material recipe, it takes a lot of time and effort and if the position correspondence shifts during machine operation, the position correspondence must be measured again by measuring step responses.According to the present invention, the position correspondence, interference width, and process gain of a process model are modified so that the deviation between the process model and the measured profile is minimized by inputting the manipulated variable of the actuators to the process model. This position correspondence is also set to a cross direction controller that outputs the manipulated variable. Since this enables the position correspondence to be modified in succession to the optimum value during machine operation, it prevents controllability from deteriorating even if the position correspondence shifts, thereby eliminating time and effort for measuring and switching position correspondences for each raw material recipe.

A two-step inversion method for computing multi-layer subterranean formation properties includes processing gain compensated electromagnetic measurement quantities using a first inversion to compute acorresponding set of borehole corrected gain compensated measurement quantities. The first inversion includes a mathematical model of the tool and the borehole in a uniform, anisotropic formation. The set of borehole corrected gain compensated measurement quantities are then processed using a second inversion to compute multi-layer anisotropic formation properties. The second inversion includes a1D inversion employing a point dipole model and a multi-layer formation model.

The invention discloses a design method of dynamic optimization control layer output constraints of a dilute acetone rectification industry. The method comprises the following steps: Step one, for a dilute acetone rectification industrial model predication control system with a double-layer structure, solving a gain model of a stable-state optimization layer of a model prediction controller; step two, finding out uncertain elements in a process gain matrix in the gain model; step three, according to the uncertain elements and system interference variables, solving an upper boundary of an output constraint reachable set and a lower boundary of the output constraint reachable set; and step four, according to the upper boundary of the output constraint reachable set and the lower boundary of the output constraint reachable set, obtaining the dynamic optimization control layer output constraints. The design method of the dynamic optimization control layer output constraints of the dilute acetone rectification industry, provided by the invention, is applied to a non-regular uncertain system, guarantees the solution feasibility of the dynamic optimization control layer model prediction controller and enables the benefits of enterprises to be maximized.

The disclosed method for increasing RF power amplifier linearity comprises: base band acquires output power of current RF power amplifier from received top signaling to determine the size of IQ signal for RF transmitter; the base band sends IQ signal to target, and the latter processes gain or received IQ signal to send signal to a RF power amplifier. This invention can ensure the output signal linearity so as well as the RF power amplifier.

A time switch for use in communications systems and method for controlling the same is provided. The control memory is controlled by using a 16 bits data bus. The lower 9 bits represent information relating to the input port and time slot, and an upper 6 bits represent information which is needed for output conversion. The use of 16 bit control provides simplicity of time switch design by removing unnecessary elements of the prior art time switch and decreases the switch set up time. In addition, the time switch of the present invention makes it possible to process gain control from inside the time switch and eliminates the need for external gain control processing.

The invention relates to the technical field of material surface reinforcement, in particular to a method of reinforcing a surface structure by laser shock. The method comprises: measuring shape parameters of a surface to be processed, and fitting a math function of the surface to be processed, according to structural characteristics of the surface; determining laser beam energy required by laserto perpendicularly enter the surface to be processed; determining positional coordinates of a plurality of special shock areas, and calculating required corresponding laser beam energy; acquiring a final laser beam energy distribution expression; preparing a laser beam according to the laser beam energy distribution expression so as to perform shock reinforcing on the surface to be processed. Themethod has the advantages that laser beam energy distribution is adjusted for shape characteristics of a surface structure, the whole surface to be processed gains laser energy densities tending to beconsistent, equal-strength laser shock reinforcing is achieved for the surface structure, uniformity of laser shock strength is guaranteed for the process of surface structure reinforcing, and the distribution uniformity of surface integrity parameters, such as residual stress, is improved.

The invention discloses a pulse processing generation method and device. The influence of original and unstable errors is reduced to a degree enough to be ignored through enough large process gain, sothat the minimum mastering precision of the distance and the speed in industrial production or motor control is reduced to the minimum, stepless adjustment and theoretical limitation-free frequency division is achieved, and a higher-precision control effect is achieved.

In order to solve the problems of quality control that relation of position correspondence between an operation end and a measurement point is measured for each brand and the relation is changed, however, much labor is required and when relation of position correspondence is shifted during operation, step response is measured and remeasurement of relation of position correspondence is required. The operation amount of an operation end is inputted to a process model, the relation of position correspondence, interference width and process gain of the process model are corrected so that deviation between the process model and a measured profile is minimized and the relation of position correspondence is set in a width direction controller for outputting an operation amount. Consequently, since the relation of successive position correspondence is corrected to the optimum value during operation, controllability is not deteriorated even if the relation of position correspondence is shifted, labor for measuring the relation of position correspondence for each brand and changing the relation is eliminated.

The invention provides an apparatus for selecting a process to be carried out from a plurality of processes, wherein each process is assigned a process result, said apparatus having a providing device (101) for providing a first statistical required density for a first process result of a first process from the plurality of processes inside a process interval and for providing a second statistical required density for a second process result of a second process from the plurality of processes inside the process interval, a calculating device (103) for calculating a first process gain, which results when the first process is carried out, on the basis of the first required density and a number of first process results of the first process that can be reached up until a predetermined process time and for calculating a second process gain, which results when the second process is carried out, on the basis of the second required density and a number of second process results of the second process that can be reached up until the predetermined process time, and a selection device (105) for selecting the first process or the second process as the process to be carried out on the basis of a comparison of the first process gain and the second process gain.