然后介绍了锁相环(PLL)的基本结构、相位模型、频率响应、噪声及杂散性能。
Then presented the basic structure, phase model, frequency response and performance analysis for noise and spur, of phase locked loop (PLL).
分析了多雷达信号融合中的幅度相位模型，并基于旋转不变技术提出一种新的幅度相位补偿参数估计方法。
The amplitude-phase compensation model of multi-band radar signal fusion is analyzed and the new amplitude-phase compensation algorithm based on the ESPRIT is presented.
建立了双频载波相位观测模型，并将其进行无电离层延迟化简，用最小二乘原理推导了天顶湿延迟的估值公式。
The dual-frequency carrier phase observation equation is built and ionosphere-free predigested, the estimate formula of zenith wet delay is deduced with least square method.
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