设载波频率为20Hz，信息速率为2Baud,用MatLab画出QPSK信号波形。

EVRC code 的框图与流程,希望对大家理解EVRC encode 有帮助, Evrc Block Diagram, for audio engineer to understand EVRC encode,code -EVRC code of block diagram and flow, and they hope to have everyone understand the EVRC encode help, Evrc Block Diagram, for audio engineer to understand EVRC encode, code

OFDM仿真matlab程序代码（内附详细解释）-OFDM Matlab simulation code (with detailed explanations)

它是简单的套接字编程的初学者。 通常两个进程互相沟通通过以下任一单个系统上除进程通信技术。 管道 消息队列 共享的内存 有几种其他方法。但上述的一些非常经典的进程间通信的方式。 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

语音LPC压缩算法源代码（C语音）-voice compression algorithm source code (C voice)

In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.-In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.

通过编程计算ＲＳ编码前后通信系统的误码率可以很清楚的看到系统的编码增益．-programmed to calculate RS coding communication systems around the BER can clearly see the coding gain.

OFDM及其基带FFT实现原理以及OFDM的载波和符号同步问题-and OFDM baseband FFT principle and the carrier OFDM symbols and Synchronization

用MODEM实现来电显示的方法,可以针对任何内置与外置型的MODEM-with MODEM CND approach to address internal and external to any type of MODEM

改程序是708温度控制器与上位机通讯显示系统。-Reform process is 708 temperature controller with the host computer display system of communication.