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Multi-parameter rasterizing sliding signal statistic screening processing method

A technology of signal statistics and processing methods, applied to radio wave measurement systems, instruments, etc.

Active Publication Date: 2014-07-23
THE 724TH RES INST OF CHINA SHIPBUILDING IND
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Problems solved by technology

For the signal sequences falling into two adjacent grids, the parameter grid sliding screening method is used to perform cluster statistics of signal parameters in two levels

Method used

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  • Multi-parameter rasterizing sliding signal statistic screening processing method
  • Multi-parameter rasterizing sliding signal statistic screening processing method

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Embodiment Construction

[0013] The invention designs a multi-parameter rasterized sliding signal statistical screening processing system. The hardware processing platform for real-time sorting of complex signals adopts 4 array signal processing boards based on CPCI bus, and each circuit board contains 6 TS201DSP processors to form a high-speed array data processing system for detection signals. The four DSP array processing boards correspond to different detection receiving processing channels. Each board has the same structure. The four DSP array processing boards use the CPCI bus to transmit cooperative work control signals, and carry out data distribution and data exchange through the dedicated Link interface. Each board is connected and secured by two columns of 64-pin sockets. Each DSP processing board can be debugged and operated independently, which provides convenience for future system upgrades.

[0014] After the input signal is measured by the pulse signal parameters, DSP1 completes the...

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Abstract

The invention relates to a multi-parameter rasterizing sliding signal statistic screening processing method which is used for achieving the effect that a passive signal detection system sorts time-varying parameter complex signal sequences in the dense signal environment. High-density complex pulse signal flows which are detected and interwoven with the parameters changing randomly are subjected to parameter discretization segmentation according to time grids, time-varying parameter vectors of pulse signals are arranged corresponding to the time grids to form a vector parameter array sliding with time, a vector grid matching algorithm is adopted to conduct pre-sorting according to the time of arrival (TOA) and the angle of arrival (DOA) of signals and the carrier parameter change, and then fine sorting is conducted according to the signal pulse width and the repetition period change rule. By means of the method, sorting of the time-varying parameter complex signal sequences is decomposed into multistage vector clustering statistic screening and the least square error estimation processing, and accurate sorting and recognition can be conducted on complex signals of electronic scanning beams and phase control array radar radiation.

Description

a technical field [0001] The invention belongs to the technical field of real-time signal sorting and processing in passive detection and positioning systems and electronic reconnaissance / detection systems, and is used for sorting and identifying complex radiation source signals such as electronic beam scanning radars and phased array radars. Two background technology [0002] In the modern electronic countermeasure environment, the typical signal environment faced by the electronic reconnaissance system is a dense pulse stream formed by random overlapping of pulse signal sequences of many radiation sources. With the rapid development of modern electronic information technology, the number of radiation sources and the complexity of signals are increasing, which has caused qualitative changes in the signal environment. Not only are a large number of signals densely overlapped, but also the parameters of the signals change rapidly with time. The conventional electronic reconna...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/292
CPCG01S7/2923
Inventor 王建桂峰翟晓宇
Owner THE 724TH RES INST OF CHINA SHIPBUILDING IND
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