| 1. | As to symbol synchronization , a simple but effective flow is discussed and analyzed penetratingly . at last , the working flow of the whole system is designed
对整个解调系统进行了总体工作流程设计，对程序软件进行了功能划分和各个功能模块的流程设计。 |
| 2. | An improved algorithm for symbol synchronization and symbol decision are proposed . their performance at different level of snr and frequency offset are discussed by simulations
本文提出了一种改进的码元同步算法和改进的码元判决算法，通过仿真分析了它们的抗噪声和抗频偏性能。 |
| 3. | Secondly , a dstft ( discrete short time fourier transform ) - based demodulation method for the 2fsk signal is studied and algorithms for symbol synchronization and symbol decision are analysed
重点研究了基于离散短时傅里叶变换解调2fsk信号的方法，分析了几种码元同步算法和码元判决算法。 |
| 4. | At last , this paper analyses the delay correlation properties of 2fsk signal , and proposes a new algorithm for symbol synchronization , which shows better performance when frequency offset exists
最后，从抗频偏的角度出发，通过分析2fsk信号的延迟相关特性，给出了一种码元同步算法，具有良好的抗频偏性能。 |
| 5. | This article take the synchronous system in the dvb - c receive front - end as a center . detaile discussing symbol synchronization and carrier recover , discussed with emphasis based on the software radio thought algorithm
本文以dvb - c接收前端的同步系统为中心,详细的讨论了符号同步和载波恢复,重点研究了基于软件无线电思想的算法。 |
| 6. | The structure analysis and design of interpolation filter for symbol synchronization are introduced , based on which a poly - phase structure of interpolation filter with high accuracy and low complexity is presented
其次，介绍了符号同步中内插滤波器的常见结构及其设计方法，并给出一种具有较高精度和较低复杂度的多相型同步内插器结构。 |
| 7. | From its realization , the local short - delay interconnection method , the coding symbol synchronization method of multidimensional tcm , and the reliable receiving structure of high - speed dada are advanced
同时根据工程实践总结了vd基于网格图的短时延局部连线设计方法、接收端的多维tcm编码符号同步方法,设计了高速数据的可靠接收结构。 |
| 8. | Take this as the premise , this article has constructed one kind synchronous system on the based of the software radio thought , this synchronous system has realized the qam receive signal symbol synchronization and the carrier recover
以此为前提,本文构建了一种基于软件无线电思想的同步系统,此同步系统实现了qam接收信号的符号同步和载波恢复。 |
| 9. | The clock obtaining practical circuit in approximately synchronization and clock circuit about symbol synchronization are designed ( realized one circuit ) ; the three controlling circuits with fast and low clock in code speed adjust technique are designed
在此基础上设计了基于scc准同步的一种时钟恢复实现电路和两种字符型起止式同步电路(实现了一种) 。设计了正码速调整技术中快慢时钟的三种控制电路。 |
| 10. | Chapter 3 treats the algorithm implementation of demodulator in the receiving asic of dvb - s . in detail , demodulation includes carrier recovery and symbol synchronization . together with the transmission characterization of band - limited input signals the chapter proposes a scheme for implementing carrier recovery loop
解调具体分为载波恢复、时钟同步两大部分，本章着重论述了载波恢复的原理并结合dvb - s输入信号传输特性，提出了相应的实现方案，对部分电路进行了性能分析。 |
