Real time optimal and quasi-optimal methods for the angle measurement are analyzed using frequency-scan and phase-scan radars as examples.

本文以频率、相位扫描体制雷达为例，探讨了实现实时比幅测角最佳及准最佳方法。

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As the scheme is designed conforming to the criteria of approximate linear least-mean-square error estimation, it is theoretically quasi-optimal.

由于该方案是基于近似的线性最小均方误差估计准则而设计的，因此它是一种理论上的准最佳跟踪方案。

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Aiming at this problem, a new quasi-optimal structure of GPS carrier tracking loop based on extended Kalman filtering is proposed in this dissertation.

针对该问题，本文基于扩展卡尔曼滤波方法提出了一种准最佳的GPS载波跟踪环结构设计方案。

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