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Multifunctional radar detection waveform generating method

A waveform generation and multi-function technology, applied in the field of radar communication, can solve the problems of high autocorrelation side lobes and insignificant interference effect, and achieve the effects of improving autocorrelation, improving detection performance, and improving interference performance.

Inactive Publication Date: 2017-06-30
安徽省瑞鼎电子技术有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a multifunctional radar detection waveform generation method, which solves the problems that the interference effect of the traditional multifunctional radar detection waveform is not obvious and the autocorrelation sidelobe is too high

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] The present invention is a method for generating a multifunctional radar detection waveform, such as figure 1 shown, including the following steps:

[0035] S1. In the working frequency band of the multi-function radar detection waveform [f 1 f 2 ] Randomly generate the center frequency point f of the linear FM waveform 0 , followed by setting the working bandwidth, pulse width and sampling frequency of the chirp waveform, and generating a narrow-band ch...

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Abstract

The invention discloses a multifunctional radar detection waveform generating method. The multifunctional radar detection waveform generating method comprises the following steps that a narrow-band linear frequency modulation waveform is generated; window adding processing is performed to obtain the narrow-band linear frequency modulation waveform undergoing the window adding processing; gaussian white noise is generated; wide-band band-pass filter processing is conducted on the generated gaussian white noise to generate colored gaussian noise; the colored gaussian noise modulates sine wave frequency to generate a wide-band noise frequency modulation waveform is generated; the filter wide-band noise frequency modulation waveform is obtained through band elimination filter processing; the narrow-band linear frequency modulation waveform undergoing the window adding processing and the wide-band noise frequency modulation waveform are synthesized in time domain to generate the multifunctional radar detection waveform. The interference performance of the radar detection waveform can be effectively improved through random generation of center frequency, the detection performance of the multifunctional radar detection waveform is improved through the window adding processing, the multifunctional characteristics of the radar detection waveform are effectively improved through the band elimination filter processing conducted on the generated wide-band noise frequency modulation waveform.

Description

technical field [0001] The invention belongs to the technical field of radar communication, and relates to a method for generating multifunctional radar detection waveforms. Background technique [0002] At present, scholars have done preliminary research on multi-function radar detection waveforms, among which random biphase modulation and coding waveforms are the most widely used. It is found that when random bi-phase modulation and coding waveforms are used as multi-function radar detection waveforms, there are too high autocorrelation sidelobes, The degree of randomness is not high, and the multi-function effect is not obvious. The design problem of detection waveform of biphase modulation multifunctional radar belongs to polynomial complexity non-deterministic problem, it is difficult to obtain the global optimal solution in the true sense, and the global suboptimal solution can only be obtained through the local optimal solution. Due to the disadvantages of traditiona...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/28
CPCG01S7/28
Inventor 刘方正杨星耿洪磊潘瑞蕾刘世龙
Owner 安徽省瑞鼎电子技术有限公司
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