The sixth chapter studies the techniques in measuring the bearings changing rate and centrifugal acceleration, and poses several algorithms of measuring pulse Doppler shift frequency changing rate.

第六章主要对角度变化率和离心加速度参数的获取技术进行了研究，提出了几种高精度测量脉冲序列多普勒频率变化率的方法。

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LEO satellite communication system has the properties of larger power dynamic range, larger and faster changed doppler frequency shift and rapid fluctuation compared to ordinary communication system.

相对于一般的通信系统而言，低轨卫星通信系统具有信号动态范围大，多普勒频移大且变化速度快，信道起伏剧烈等特点。

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In this paper, an integrated optical modulator is proposed and analyzed, which is constructed in a fin line geometry and can be applied to a Doppler radar for processing the Doppler frequency shift.

提出并分析了集成电光波导调制器在多普勒雷达中的一种新的应用方式。该调制器的电极采用鳍线结构，能够方便地获取多普勒频移信号。

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And since a moving object causes a tiny change (known as a Doppler shift) in the frequency of the reflected signal, Silent Sentry can also calculate how fast it is moving.

ECONOMIST: Remote sensing