粗码

然后，分别沿码盘的径向和切向读取粗码和细分码，并由它们构成最终的角度值。

Then , the coarse code and subdivision code , of which the angle is consisted , were read out along the disc 's radial direction and tangential direction , separately .

该方法避免了机械上对精码的刻划、电子学上对精粗码校正及A/D转换中量化等误差对细分结果的影响。

The method can avoid many error influences to the interpolation result , such as the scoring error to the extractive signal in machine , the emendation error to the extractive and coarse signal in electronics , and the A / D conversion error , and etc.

这样，整个平台就能实现对信号的粗捕获、码相位和频率的锁定跟踪，最终实现导航电文解码及用户位置定位。

Therefore , the whole platform could realize coarse acquisition , tracking of code phase and frequency , navigation message decoding and positioning of the user * The paper focuses on the design of the 12-channel digital correlator and baseband processing loop .

整个AGC控制环路采用数字控制方式进行控制，其中包括一位粗调电流数字码和七位微调电流数字码。

By using digital control method , the AGC loop has one rough gain control bit and seven fine gain control bits .