摘要
给出了一种利用ARMLPC2104,锁相环MC145151,压控振荡器MC1648,CPLD芯片EMP7128和FIFO IDT7205等实现直接序列扩频(DSSS)信号源的设计方案。该信号源能通过载波频率,码率,输出信号幅度,伪码长度及信噪比进行调整来模拟现实环境中的多种信号,为估计DSSS信号参数的算法研究提供数据。
A design method of DSSS signal generator with ARM LPC2104, PLL MC145151 -2, VCO MC1648, CPLD - EMP 7128 and FIFO IDT 7250 etc. is presented in this paper. Many kinds of signals in the actual environment can be simulated through adjusting the parameters including carrier wave frequency, bit rate, output signal amplitude, length of pseudorandom sequence and SNR, which can pro- vide data for the algorithm research about parameter estimation of DSSS signal.
出处
《实验科学与技术》
2006年第1期5-7,11,共4页
Experiment Science and Technology
