多频连续波雷达与角度-距离联合估计方法

频控阵（frequency diverse array）雷达存在角度和距离定位模糊的问题，基于频控阵与早期的多频连续波（multi-frequency continuous wave）雷达相同的测距原理，提出了改进的多频连续波雷达模型，通过采用相控阵接收的方式，克服了传统频控阵角度和距离定位模糊的问题.根据收发阵元数的不同，推导了四种配置下的信号模型，分析了多频连续波雷达相比传统频控阵可解耦角度与距离定位模糊的原因.新的多频连续波雷达实现定位的本质为三维多频估计问题，为此提出了一种基于迭代插值傅里叶系数（iterative interpolation Fourier coefficients））的角度-距离联合估计方法，理论分析了算法的性能.仿真结果验证了所提方案与算法的有效性.

Multiple-Frequency CW Radar and Joint Angle-Range Estimation Method

Frequency diverse array radar has the problem of ambiguity in angle and range localization.Based on the same ranging principle as early multi-frequency continuous wave radar, a model for the multi-frequency continuous wave (MFCW) radar is proposed, which overcomes the ambiguity of the angle-range beampattern of the traditional frequency diverse array (FDA).The signal models of the MFCW radar under four operating modes are deduced according to the number of transmitting and receiving elements, and the reason for the decoupled angle-range localization is analyzed compared with the traditional FDA.A joint angle-range localization method based on iterative interpolation Fourier coefficients (IIFC) is proposed for the single-input multiple-output (SIMO) mode.The performance of the algorithm is analyzed theoretically.Simulation results show the effectiveness of the proposed scheme and the algorithm.