After that , the paper explains the frame encapsulation , baseband processes of data bursts in inroute and outroute way . the principle of ipos protocol is continually researched on those analyses 然后详细讲述了ipos协议在出、入向信道不同的数据帧格式、基带处理过程,并以此为基础分析ipos协议的工作原理。
The thesis expounds the cell design and timing design of the fpga circuit in main controlling and baseband signal processing module , and develops the hardware of it , and programs part of the software 文中详细阐述了主控与基带处理单元中fpga模块设计与时序设计,研制了主控与基带信息处理单元硬件,编写了部分调试软件。
Data after ad sampling and digital down converter transfer to computer through pci bus interface , while base - band signal processing may choose cots dsp board or general high - performance pc in term of the need Ad采样、数字下变频后的数据通过pci接口传入计算机，基带处理可视需要选用多种商用dsp处理板，或选用高性能pc机。
The transmitter does the work of a burst transmission , its encoding and framing are all implemented in the link control part , the base - band process part does the spreading , fir filtering and up frequency conversion 发射机实现一个突发传输过程，编码和组帧都在链路控制部分实现，基带处理部分做扩频、 fir滤波和上变频的工作。
This paper is based on the base band processing design , as the bridge of communication processing module and receiving and sending module , base band module has taken charge of dsp of ais protocol bottom 本文以基带处理模块的设计为重点,作为ais通信处理模块与ais收、发模块之间的桥梁,基带处理模块负责ais协议底层的数字信号处理工作。
This paper mainly does research about hsdpa system in nodeb of wcdma , including design of system architecture , analysis performance of physical layer based on dsp chip , and scheduling algorithm of mac layer 本文主要研究wcdmanodeb基带处理过程中的hsdpa系统。主要包括系统架构设计、基于dsp芯片的物理层性能分析和mac层调度算法研究。
The paper designed the pn analyzer with using receiver circuit with optimized twice down - convert and highly efficient process arithmetic and comprehensive design and particularly harmonious system . in the system the 该文研制的pn分析仪pnscanner采用了很优化的二次下变频接收机电路以及效率很高的基带处理算法,严谨周到的设计和独特的协调机制。
Through the analysis of advantages of several gmsk arithmetic and requirement of system processing , the base - band time lag demodulating algorithm based on quadrature demodulation and tms320vc5402 are selected for base - band processing 通过分析gmsk几种算法的优越性以及系统对处理的需求，选择基于正交解调的基带时延检波算法以及tms320vc5402进行基带处理。
After that , it discusses the principle of the band - pass technology , illuminating the feasibility of the digital intermediate frequency system based on the sampling speed which is two times lager than the signal band but unsatisfying the nyquist theorem 随后讨论了带通采样技术的原理,说明可以使用不满足奈奎斯特低通采样定理但大于信号带宽两倍的采样速率进行中频数字化,减轻基带处理负担。
During the designing of data transmission system , we should assure the dependability of transmission , descend the transmittal power and decrease the volume . therefore , using error control technology in base - band processing unit is consumedly important 数据传输系统的设计,要保证传输的可靠性,降低通信设备的发射功率,减小体积,因此在基带处理单元中进行差错控制设计具有非常重要的意义。
