Detecting method of cognitive cable frequency modulation pulse navigation radar system

A frequency-modulated pulse and marine radar technology, applied in the field of marine radar, can solve the problems of insensitivity to cost and insufficient attention, and achieve the effects of robust target detection, enhanced signal-to-clutter ratio, and improved radar suppression capabilities

Pending Publication Date: 2019-05-10
柳毅
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Problems solved by technology

[0003] In recent years, the research results of cognitive radar technology have developed rapidly, especially in the research of fully adaptive waveform optimization

Method used

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  • Detecting method of cognitive cable frequency modulation pulse navigation radar system
  • Detecting method of cognitive cable frequency modulation pulse navigation radar system
  • Detecting method of cognitive cable frequency modulation pulse navigation radar system

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] A detection method for a cognitive linear frequency modulation pulse marine radar system, comprising the following steps:

[0029] A. produce figure 1 The shown parameters controllable intrapulse line FM signal waveform: narrow, medium and wide three pulse widths are W i = α i W oi The pulses (i=1,2,3) form a pulse group (combined pulse for short), W oi is the reference pulse width of the i-th pulse, which is a fixed value, and each pulse has a corresponding control coefficient α i , changing the control coefficient α i Control of waveform parameters such as sub-pulse width, sub-pulse interval, sub-pulse modulation bandwidth and group repetition period can be realized;

[0030]

[0031] The values ​​of each waveform parameter are shown in Table 1.

[0032] Table 1 Table of control parameters and waveform parameters

[0033]

[0034] The frequency m...

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Abstract

The invention relates to the technical field of navigation radars, and specifically relates to a detecting method of a cognitive cable frequency modulation pulse navigation radar system. The method comprises steps of emitted signal waveform of a cable frequency modulation pulse radar with controllable parameters, control rule of emission of pulse waveform parameters, control algorithm of emissionof pulse waveform parameters, control process of emission of pulse waveform parameters, multi-diversity solution associated processing of clutter and target detection processing, and information sensing of radar target and environment echo thereof. The method has strong clutter (particularly sea clutter) suppression capability, better target distinguishing performance and smaller distance dead zone and more stable target detection and tracking performance, thereby being an environment-friendly radar detecting method.

Description

technical field [0001] The invention relates to the technical field of marine radar, in particular to a detection method for a cognitive linear frequency modulation pulse marine radar system. Background technique [0002] At present, whether it is the traditional magnetron pulse radar or the linear frequency modulation pulse compression radar that has just been popularized and applied in recent years, its working mode has always been to use the fixed parameters such as the transmission pulse width and pulse repetition frequency to change with the manual change of the working range. The mode, waveform parameters and signal characteristics completely fail to respond to the target in the detection space, its adjacent clutter distribution characteristics and the geographical environment characteristics of the water area. The narrow pulse mode radar with a short range has a limited detection range, which makes it impossible to reliably track and monitor targets at a relatively lo...

Claims

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Application Information

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IPC IPC(8): G01S13/88G01S13/66G01S7/28
Inventor 柳毅张淑芳索继东
Owner 柳毅
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