说明硬件测试中伪随机码序列特点和生成原理，并对比较时如何使数据对应做出讨论。
The comparing program in VB, how to produce a pseudorandom bit stream, and how to make the compared synchronous data correspondingly is described.
本文通过对NRZ、RZ伪随机码序列进行频谱分析，得知当NRZ码变换成码元占空比为1/2的RZ码时，所提取出的定时时钟功率最强。
By analysing frequency spectrum in this paper, we can understand that when NRZ code be transferred into RZ code of 1/2 mark-to-space ratio, the timing clock can be obtained at largest power.
伪随机码绝对式编码器采用M序列伪随机码作为编码方法，采用双狭缝技术进行分时位置读取，并采用ROM元件进行译码输出。
M sequence pseudorandom code is used for encoding the pseudorandom code absolute encoder, double slit technique is used to perform time sharing reading and ROM is used as the coding device.
如果扩频序列采用正交性能好的伪随机码，系统的性能可以优于其他系统；
The dissertation use theories analysis , computer simulation methods with hardware to analyze system performance , data-mapping method and effect of PN code.
如果扩频序列采用正交性能好的伪随机码，系统的性能可以优于其他系统；
The dissertation use theories analysis , computer simulation methods with hardware to analyze system performance , data-mapping method and effect of PN code.
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