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LDPC编解码的程序
我勒个去,还要怎么详细?就是和标题一样。LDPC码的编解码,用matlab写的。
- 2022-03-12 19:21:16下载
- 积分:1
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smart card iso7816 标准的文档
smart card iso7816 标准的文档-smart card iso7816 standards document
- 2022-06-26 08:49:26下载
- 积分:1
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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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进程通信,共享内存
通过利用共享内存的一部分空间(以下称为“数据信息区”)来存储当前内存中存储的数据信息,完成了对内存读写功能的完善。
- 2023-06-17 14:45:03下载
- 积分:1
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1) 2KHz and 8KHz to generate the mixed
1)生成2KHz和8KHz的混合信号,使该信号通过上述滤波器,观察滤波前后的波形变化和频谱分布情况。
2) 在改信号中加入高斯白噪声,观察滤波前后的波形变化和频谱分布情况3) 将上述滤波器改为中心频率为100KHz的带通滤波器,信号源为带外的90KHz和带内的100KHz的混合正弦信号,。
4) 用M文件实现上述低通滤波器。
-1) 2KHz and 8KHz to generate the mixed-signal, so that the signal through the above-mentioned filter, filter before and after observation of the waveform and spectrum distribution of the changes. 2) add to the signal in white Gaussian noise was observed before and after filtering and spectral waveform changes in the distribution of 3) will be replaced by the above-mentioned filter center frequency of 100KHz band pass filter, the signal source for the band and the band of 90KHz 100KHz Sine of the mixed signals. 4) achieve the above-mentioned documents with M low-pass filter.
- 2022-07-16 14:47:51下载
- 积分:1
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QT语音自动发送广告
QT语音自动发送广告,可以设定个数,自动跳过管理员/商家!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- 2022-03-06 07:47:06下载
- 积分:1
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TAPI是微软集成在操作系统中的一个功能,我们利用TAPI可以实现通信 传真的功能,该实例主要用于电话语音方面的,值得借鉴....
TAPI是微软集成在操作系统中的一个功能,我们利用TAPI可以实现通信 传真的功能,该实例主要用于电话语音方面的,值得借鉴.-TAPI is the Microsoft operating system integrated into a functional, we can realize the use of TAPI fax communication capabilities, the examples of the major aspects for telephony, is worth learning from.
- 2023-06-19 08:40:03下载
- 积分:1
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此软件描述的是一个通讯录的软件,此软件简单实用,很好用,...
此软件描述的是一个通讯录的软件,此软件简单实用,很好用,-dsfg
- 2023-05-21 12:25:05下载
- 积分:1
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利用Serial Port类通过485接口实现对艾默生TD1000变频器的启动 停机 频率设定...
利用Serial Port类通过485接口实现对艾默生TD1000变频器的启动 停机 频率设定-Serial Port class through the use of 485 interface to the Emerson TD1000 start-stop frequency converter to set
- 2022-05-28 16:19:02下载
- 积分:1
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介绍了一种基于软件无线电思想的频分多址中频数字化接收机系统设计方案。它采用Altera公司的FPGA构成核
心单元,通过不同的软件配置实现对三路频分多址信号...
介绍了一种基于软件无线电思想的频分多址中频数字化接收机系统设计方案。它采用Altera公司的FPGA构成核
心单元,通过不同的软件配置实现对三路频分多址信号的解调。
-Introduce a software-based radio thinking FDMA digital IF receiver system design. It uses Altera s FPGA constitute the core unit, through different software configuration for the three-way realize FDMA signal demodulation.
- 2022-09-26 02:35:03下载
- 积分:1