直升机振动环境下的毫米波调频步进信号仿真分析

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Simulation and analysis of the millimeter wave chirp frequency stepped radar signal with vibration of a helicopter

ZHANG Guan-jie1,3;ZHANG Qun2;ZHANG Tao3;DU Zi-cheng3;ZHANG Shou-hong1

(1. Key Lab. of Radar Signal processing, Xidian Univ., Xi′an 710071， China; 2. Inst. of Telecommunication Engineering, AFEU, Xi′an 710077， China; 3. Xi′an Electronic Engineering Research Institute, Xi′an 710100， China)

Received:1900-01-01 Revised:1900-01-01 Online:2005-04-20 Published:2005-04-20

Abstract

Abstract: The mathematical mode about the vibration of a helicopter is first constructed. Then the influence of the sine vibration on the high-resolution range profiles is analyzed. It is shown in terms of “the paired-echoes” that “the paired-profiles” of the range-profiles, which result from the sine vibration, will arise under some conditions. The synthetic range-profiles are simulated under the system of the Millimeter Wave Chirp Frequency-Stepped Radar Signal. And it is proposed that much improvement of the range profiles can be achieved by using the vibration compensation of the main rotor of the helicopter in forward flight.

Key words: chirp frequency-stepped signal, high resolution, hlicopter, range-profiles

CLC Number:

TN957

ZHANG Guan-jie1;3;ZHANG Qun2;ZHANG Tao3;DU Zi-cheng3;ZHANG Shou-hong1.

Simulation and analysis of the millimeter wave chirp frequency stepped radar signal with vibration of a helicopter

[J].J4, 2005, 32(2): 247-252.

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Simulation and analysis of the millimeter wave chirp frequency stepped radar signal with vibration of a helicopter

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