基于辐射能量缩减约束的双机雷达协同目标跟踪方法

doi:10.12305/j.issn.1001-506X.2021.10.19

Abstract

Abstract:

Radiant energy reduction is an efficient method to improve the radio frequency stealth performance of airborne radar. Aiming at the constraint of radiant energy reduction in target tracking. Firstly, by means of analyzing the target echo signal to noise ratio (SNR) of dual airborne radar system, the contribution to the total radar radiant energy is derived from the distance ratio between dual radar and the target and target radar cross section, respectively. Then, for the sampling interval algorithms in radar target tracking, the recursive method based on filter residual is pointed. And the tracking accuracy and computational efficiency of simulation are analyzed and compared to the other two algorithms. Finally, the reduction of radiant energy of dual radar is verified while tracking a target, using the interacting multiple mode Kalman filter (IMMKF) algorithm and the recursive method based on filter residual. And the simulation results prove the contribution to the total radar radiant energy reduction of dual radar, utilizing the active and passive joint target tracking system. Experiment results show that the target tracking strategy involved in this paper has better stealth performance frequency.

Key words: airborne radar, radio frequency (RF) stealth, target tracking, radiant energy reduction

CLC Number:

TN957.51

Ping SUN, Fei WANG, Shanyue DOU, Jianjiang ZHOU, Jun CHEN. Dual airborne radar joint target tracking method based on constraint of radiant energy reduction[J]. Systems Engineering and Electronics, 2021, 43(10): 2851-2859.

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References 29

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时间段/s	运动模式
0~30	匀速直线运动: (100, 100)m/s
31~200	顺时针转弯运动
201~370	逆时针转弯运动
371~400	匀速直线运动

雷达参数	参数值	无源参数	参数值
G_t/dB	34	G_r/dB	0
G_tr/dB	34	G_IP/dB	0
G_RP/dB	20	B_I/GHz	1
B_R/MHz	1	F_I/dB	5
λ/m	0.03	P_I/dBm	-65
P_R/dBm	-105	-	-
T_r/s	1×10^-3	-	-

算法	总辐射能量/J	ARMSE/m
采样间隔分级法	5.6×10⁴	x方向: 36.99
采样间隔分级法	5.6×10⁴	y方向: 42.72
基于滤波残差的递推法	5.1×10⁴	x方向: 37.62
基于滤波残差的递推法	5.1×10⁴	y方向: 43.40
PCRLB法	4.9×10⁴	x方向: 38.25
PCRLB法	4.9×10⁴	y方向: 43.25

对比算法	平均采样间隔/s	跟踪ARMSE/m	辐射总能量/J
单机算法	3.05	x方向: 37.62	5.1×10⁴
单机算法	3.05	y方向: 43.40	5.1×10⁴
双机协同	3.65	x方向: 28.07	0.98×10⁴
双机协同	3.65	y方向: 31.68	0.98×10⁴
Zandi算法	3.62	x方向: 27.91	0.98×10⁴
Zandi算法	3.62	y方向: 32.22	0.98×10⁴
佘算法	3.61	x方向: 28.01	1.05×10⁴
佘算法	3.61	y方向: 31.63	1.05×10⁴
本文策略	4.20	x方向: 26.54	0.88×10⁴
本文策略	4.20	y方向: 27.59	0.88×10⁴

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Dual airborne radar joint target tracking method based on constraint of radiant energy reduction

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