PCM信号间歇收发互补设计与回波重构方法

doi:10.12305/j.issn.1001-506X.2024.03.02

Abstract

Abstract:

Interrupted transmitting and receiving in radiation simulation can effectively solve the problem of mutual coupling between signals, but it will also bring about signal loss, which will result in high sidelobes in range profile of the phase code modulation signal. To solve this problem, an intermittent transceiver complementary sequence design method is proposed and the design of complementary sequences is also given, and recombines the phase code modulation intermittent transceiver echo to eliminate the echo loss caused by intermittent transceiver and obtain accurate target range profile. Simulation results show that the design of complementary sequences and echo reconstruction splicing can accurately reconstruct the echo, and the reconstructed cross-correlation coefficient is close to 1, which verifies the feasibility and correctness of the proposed method.

Key words: radiation simulation, interrupted transmitting and receiving, echo reconstruction, complementary

CLC Number:

TN959.1

Mengjing SU, Xiaobin LIU, Qihua WU, Xiaofeng AI, Feng ZHAO, Shunping XIAO. PCM signal intermittent transmitting and receiving complementary design and echo reconstruction method[J]. Systems Engineering and Electronics, 2024, 46(3): 779-785.

Figures/Tables 11

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参数	数值	参数	数值
天线与目标之间的距离R/m	30	天线收发增益G/dB	30
RCS/m²	1	接收机信噪比SNR/dB	20
码元宽度τ/μs	0.1	发射功率P/W	1
码元个数M	511	间歇周期T_s/μs	0.3
载频频率f₀/MHz	2	设置组数K	3

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PCM signal intermittent transmitting and receiving complementary design and echo reconstruction method

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