步骤2，对取样的数 据进行正向离散余弦转换；

Step 2, forward discrete cosine transform is carried out to sampled data;

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并采用了离散余弦转换(DCT)对其方差的波谱结构进行了讨论。

We have also studied the variance spectral configuration of the surface wind field using DCT (Discrete Cosine Transform).

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针对自整角机的轴角数字转换，提出了分区间正余弦信号相比较编码和双峰值采样的方法。

A practicable solution to the angle-digital conversion of synchro is provided, which includes cut section coding for the ratio of sine to cosine and sampling on double peak value.

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介绍一种针对正、余弦旋转变压器数字转换器（RDC）模块，用复杂可编程逻辑器件（CPLD）技术实现伺服轴角编码电路设计的方案。

This paper introduces the technology scheme to design radar servo shaft encoder circuit by using CPLD on the rotary transformer and RDC module.

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介绍一种针对正、余弦旋转变压器数字转换器（RDC）模块，用复杂可编程逻辑器件（CPLD）技术实现伺服轴角编码电路设计的方案。

This paper introduces the technology scheme to design radar servo shaft encoder circuit by using CPLD on the rotary transformer and RDC module.

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