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dbpsk调制解调程序
SYMPCHUNK sets the number of symbols demodulated at once with a constant carrier frequency and symbol timing offset. This is a fundamental decoder parameter that establishes its carrier and symbol timing tracking bandwidth. Set it too low and the demodulator can"t accurately determine carrier frequency and symbol timing on a noisy signal. Set it too high and the demodulator may not be able to track large symbol rate offsets caused by Doppler shift and/or A/D or spacecraft clock errors. Or it might have trouble tracking high rates of change in the carrier frequency due to Doppler acceleration.The current value of SYMPCHUNK is 4*N1 = 512, where N1 = 128 is the order of the convolutional interleaver. 512 symbols is 512 milliseconds at 1000 symbols/sec, giving a frequency/time determination SNR that is 10*log10(512) = 27 dB greater than the Es/N0, not counti
- 2022-03-05 11:28:24下载
- 积分:1
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Mirror filters are designed to achieve opt_filter function subband decomposition...
设计了镜像滤波器opt_filter函数来实现子带分解与合成。取N=256,
nbands=16,调用滤波器函数完成子带分解与合成-Mirror filters are designed to achieve opt_filter function subband decomposition and synthesis. Take N = 256, nbands = 16, call the filter function and achieve Synthesis Subband Decomposition
- 2022-05-07 18:52:38下载
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这是一份介绍SIP协议的PPT,详细介绍了SIP协议,可以帮助SIP开发人员理解SIP协议各个消息中的头域,以及应用流程。...
这是一份介绍SIP协议的PPT,详细介绍了SIP协议,可以帮助SIP开发人员理解SIP协议各个消息中的头域,以及应用流程。-this is a point for the sip, it introduces the protocol of sip, it can help for programer for understanding the part
- 2022-02-26 10:51:19下载
- 积分:1
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Research and implementation of IMS based on NS2
Research and implementation of IMS based on NS2
- 2022-02-28 21:57:10下载
- 积分:1
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关于卡尔曼滤波和等增益滤波器的仿真源码,给出了他们的性能比较,很实用的程序...
关于卡尔曼滤波和等增益滤波器的仿真源码,给出了他们的性能比较,很实用的程序-Such as Kalman filtering and the gain on the filter simulation source code, given their performance comparison, a very useful program
- 2022-01-26 00:19:20下载
- 积分:1
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MATLAB
通信系统中基于MATLAB的四相移相键控调制的仿真-MATLAB-based communication system of the four-phase phase shift keying modulation simulation
- 2022-07-14 11:23:43下载
- 积分:1
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基于ATmega16单片机设计的串口波特率发送程序。下载方便。
基于ATmega16单片机设计的串口波特率发送程序。下载方便。-ATmega16-based single-chip serial port baud rate to send the design process. Download easy.
- 2023-02-06 03:10:04下载
- 积分:1
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TRasObject实现了一些主要的函数,允许开发者在其程序中使用RAS功能。它可以管理连接(创建,修改,重命名,删除),对选定的连接拨号或挂断。...
TRasObject实现了一些主要的函数,允许开发者在其程序中使用RAS功能。它可以管理连接(创建,修改,重命名,删除),对选定的连接拨号或挂断。-TRasObject achieved some of the major functions, allowing developers to use in their proceedings RAS features. It can manage to connect (create, modify, rename, delete), the selected dial-up or hang up the connection.
- 2022-05-20 08:58:08下载
- 积分:1
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Ofdm 技术的研究
这个项目是在 matlab 环境中完成的。它基于在 awgn 信道下使用 BPSK 和 4-QAM 的 ofdm 系统的性能研究。小信噪比的价值相当大的计算的误差 ratewas 和 ISI 制得由于相对高次幂的噪音。SNRwas 增加错误率下降,如预期。事实上,SNRvalue 大于 8 分贝,误差是零。
- 2022-03-23 15:01:30下载
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LDPC Convolutional Codes
基于Feltstrom论文的LDPC卷积码
- 2022-08-20 22:06:26下载
- 积分:1