CAJ | 학술논문

研究近程雷达FM多分量信号条件下目标距离测量. 利用目标多点散射模型、TLS-ESPRIT和数理统计方法确定平均距离. 计算单分量信号瞬时频率的方法不适合于多分量信号. 多分量信号瞬时频率可以利用TLS-ESPRIT结合数理统计的方法获得. 计算机模拟证明这种方法具有很高的测距精度.
연구근정뢰체FM다분량신호조건하목표거리측량. 이용목표다점산사모형、TLS-ESPRIT화수리통계방법학정평균거리. 계산단분량신호순시빈솔적방법불괄합우다분량신호. 다분량신호순시빈솔가이이용TLS-ESPRIT결합수리통계적방법획득. 계산궤모의증명저충방법구유흔고적측거정도.
To study the measurement of distance under the condition of the frequency modulation (FM) multi-component signal of a short range radar, the multi-points scattering model of a target, the TLS-ESPRIT (total least square estimation of signal parameters via rotational invariance techniques) and the mathematical statistics methods were used. The method of computing single frequency signal's instantaneous frequency (IF) is unsuitable to the multi-component signal. By using the method of the TLS-ESPRIT combined with the mathematical statistics, the multi-component signal's IF can be obtained. The computer simulation has shown that the method has the high accuracy for measuring the distance.