Radar clutter inhibition filter FIR design method

The invention discloses a radar clutter inhibition filter FIR design method, and aims to provide a parameter adjustable and flexible and practical FIR filter coefficient forming method; the method comprises the following steps: using MATLAB software to design a FIR filter coefficient that suits a ra...

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Bibliographische Detailangaben
Hauptverfasser:	LIU MIN, SHUAI XIAOFEI, ZHU YUJUN, BAI MINGFA, DI ZHONGQUAN, LI PEIZHEN, LIU HUALIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	The invention discloses a radar clutter inhibition filter FIR design method, and aims to provide a parameter adjustable and flexible and practical FIR filter coefficient forming method; the method comprises the following steps: using MATLAB software to design a FIR filter coefficient that suits a radar signal processing board; in a FIR filter coefficient forming process, setting radar system parameters and clutter parameters as variables with adjustable values, and building a normalization ideal FIR filter set frequency characteristics according to the radar system parameters and application environment demands; using the frequency characteristics to build a clutter covariance matrix; using the optimum filtering theory to calculate the FIR filter coefficient of each channel; finally, iterating and optimizing the FIR filter coefficient so as to reach the ideal FIR filter frequency characteristics, and maximizing an output signal to noise ratio. The method can greatly improve the radar clutter inhibition capabi