code synchronization meaning in English
码同步
Examples
- Secondly , the dissertation presents a 3 - dimensional searching method with afc and pn code synchronization and adaptive array convergence in order to accurately estimate the frequency difference between the received signal and the local oscillator
其次，为了准确估计接收信号和本地振荡器之间的频差，提出了afc 、 pn码同步、自适应阵收敛的三维搜索策略。 - It not only considers the effect of frequency error and data modulation , but also realizes code synchronization and frame synchronization at the same time . all these research work will give a valuable reference to the design of the new communication systems
本文对扩频通信系统构成和原理,扩频序列设计与优选,扩频序列同步问题进行了研究,并进行了相应的仿真。 - This paper focuses on the blind code synchronization approach and spreading sequences estimation algorithm . the main results can be summarized as follows : 1 . both synchronous and asynchronous dsss / bpsk baseband signal models are established
本文重点是对盲码同步和扩频码序列估计的研究,主要的工作成果如下: 1 、分同步和非同步两种情况建立了dsss / bpsk基带信号模型,并介绍了二种非合作式扩频码序列估计和解扩的方案。 - A modified synchronization approach by using sliding windows is proposed . the pre - processing for obtaining principal eigenvectors is a smoothing procedure for the dsss signal . the computer simulations show that the approach is more convenience in low snr comparing with other code synchronization methods
3 、提出了一种改进滑动窗的盲同步方法,该方法利用求主特征向量的过程,对扩频信号进行平滑降噪预处理,实现了较低信噪比下的码同步。 - Moreover two types of non - cooperative sequences estimation and despreading schemes are introduced briefly . 2 . several usual blind code synchronization methods , including delay multiply ( sliding autocorrelation ) , maximum norm and average noise reduction approaches are summed up and analyzed by computer simulations
2 、总结和介绍了几种常用的盲码同步方法,包括延迟相乘(滑动自相关)法、最大范数法、平均降噪法等,并进行了计算机仿真和分析。