基于DSP的并扩基带信号源设计与实现  

Design and implementation of PCSS baseband signal source based on DSP

作　　者：郭慧[1] 位小记[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2010年第12期27-31,共5页Applied Science and Technology

摘　　要：并行组合扩频技术(PCSS)是一种新的扩频通信方式,适用于猝发通信、频带受限通信以及军事通信等领域.为了设计一种基于这种扩频方式的基带信号源,从并行组合扩频技术的原理入手,结合伪随机码生成、并扩调制以及载波调制几方面给出了一种并扩基带信号源的设计方案,通过Matlab仿真验证该方案的正确性,并在自主开发的DSP硬件平台上实现该方案.使用该信号源可大大缩短并扩通信系统接收机对基带信号处理的调试周期.The parallel combinatory spread spectrum（PCSS） technology is a new spread-spectrum communication method,which is applied to precipitate communications,military communications and other restricted areas.In order to design a baseband signal source based on this kind of spread spectrum method,the paper proposes a design options of PCSS baseband signal source from the theory of the PCSS,pseudo-random code generation,PCSS modulation and carrier modulation,and then through the Matlab simulation verifies the correctness of the design options,and at last achieves the design options on the self-developed DSP hardware platform.Using the signal source can greatly shorten the debug cycle of the PCSS receiver for baseband signal processing.

关 键 词：并行组合扩频通信 基带 信号源 DSP 4APK调制 

分 类 号：TP335[自动化与计算机技术—计算机系统结构]