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Construction and receiving method of superwide band pulse wave signal

An ultra-wideband pulse and waveform signal technology, applied in electrical components, transmission systems, etc., can solve the problems of high energy value of the basic pulse autocorrelation function, high system bit error rate, etc., reduce carrier generation and frequency mixing, and simplify System structure, effect of improving bit error characteristics

Inactive Publication Date: 2005-11-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for constructing and receiving an ultra-wideband pulse waveform signal, so as to overcome the deviation of the energy value of the basic pulse autocorrelation function when multi-user and multipath interference are considered in the existing ultra-wideband wireless communication. High, so the system bit error rate is also high defect

Method used

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  • Construction and receiving method of superwide band pulse wave signal
  • Construction and receiving method of superwide band pulse wave signal
  • Construction and receiving method of superwide band pulse wave signal

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specific Embodiment approach 1

[0006] Specific implementation mode one: the following combination figure 1 This embodiment will be specifically described. The present embodiment is realized through the following steps: one, the pulse generator 1 sends the original pulse signal (t), and the pulse compression delay device 2 compresses and time shifts the original pulse signal (t) respectively for i times and compares it with the original pulse signal (t) carries out weighted superposition, thus forms a combined waveform; Simultaneously, the clock signal that the time-hopping sequence code that generates by time-hopping sequence code generator 3 and the clock signal that is produced by frame information clock 6 completes difference in time-hopping sequence output device 4 2. The information data generated by the information source 7 that is input into the transmitting pulse signal shaper 5 is modulated with the combined waveform to complete the informatization of the combined waveform, and then input to the...

specific Embodiment approach 2

[0007] Embodiment 2: The difference between this embodiment and Embodiment 1 is: it also includes a mapper 21, and the mapper 21 maps the binary data output by the information source 7 into "1" and "-1" and transmits them to the transmission pulse The signal shaper 5 and the data judging unit 20 are configured to judge a value greater than 0 output by the pulse correlator 19 as "0", and judge a value smaller than 0 as "1". In this embodiment, the data decision unit 20 is a zero-crossing comparator. In this way, the multiplication of "1" or "-1" output by the mapper 21 with the combination waveform directly obtains the combination waveform of positive phase and the combination waveform of reverse phase, which is convenient for transmission and demodulation. Other composition and connection modes are the same as those in Embodiment 1. This embodiment is suitable for TH-BPSK system. like figure 1 shown, containing N u In a user's system, pulse generator 1 produces the origina...

specific Embodiment approach 3

[0020] Specific implementation mode three: the following combination Image 6 This embodiment will be specifically described. The difference between this embodiment and Embodiment 1 is that it also includes binary and quaternary data converters 22, a delay device 23, a No. 1 inverter 24, a No. 2 inverter 25, and a receiving end delay device 26 , No. 3 inverter 27, No. 4 inverter 28, No. 0 correlator 30, No. 1 correlator 31, No. 2 correlator 32, No. 3 correlator 33 and four binary data converters 40, pulse generator 1 The original pulse signal (t) produced is an orthogonal wavelet signal, and the original pulse signal (t) is input to the delayer 23 and outputs a 0-delay signal (t), a primary delay signal (t-1) and two The secondary delayed signal (t-2), the original pulse signal (t) is input to the pulse compression delayer 2 and then the output signal (2t), the secondary delayed signal (t-2) and the signal (2t) After being superimposed, one combined waveform W0 is f...

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Abstract

This invention discloses a structure of a super-wide band pulse waveform signal and receive method, which sets up a pulse first, then compresses said pulse for times then carries out translation on time finally to weigh the original waveform and compressed waveform to make up of a new combined waveform to transmit data in terms of the present super wide band wireless communication way, besides, various modulations and multiple address ways are added.

Description

Technical field: [0001] The invention relates to an ultra-wideband (Ultra Wide-Band) wireless communication technology, in particular to a method for constructing and receiving an ultra-wideband pulse waveform signal. Background technique: [0002] The generation of UWB technology applied to radar and communication can be traced back to the 1960s. Due to the limitation of technology and industrial development level, the development of UWB technology is slow. Since the mid-1990s, the United States has developed a variety of ultra-wideband radio communication, radar, imaging and high-precision positioning systems, as well as ultra-wideband systems with comprehensive functions such as communication positioning and communication radar. UWB radio systems have been practically used as special equipment for the military and government departments. However, it was not until 1993 that Scholtz of the Institute of Communication Science of the University of Southern California publish...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/69
Inventor 张中兆沙学军吴宣利张乃通
Owner HARBIN INST OF TECH
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