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读PSID
调用动态链接库的API实现小灵通手机的PSID读取，有工程文件和生成的文件，还在测试用的DLL(Call the API of the dynamic link library to implement the PSID reading PSID of the PHS , with engineering files and generated files, and also in the test DLL)
- 2018-02-11 16:10:53下载
- 积分：1
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一种基于高阶累积量的数字调相信号识别方法
说明： 对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)
- 2020-06-21 09:40:02下载
- 积分：1
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TDMA接入方式的性能研究
研究TDMA接入方式的性能研究,包含吞吐量与传输时延、传输速率(TDMA suhdiuah shduah9hiisahid)
- 2018-05-09 09:05:26下载
- 积分：1
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viterbi1lva
list of viterbi编译码算法。编码结构能够任意变化。对初学者来说不错(list of viterbi codec algorithm. Coding structure changes can be arbitrary. Good for beginners)
- 2007-11-04 21:43:06下载
- 积分：1
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CC-Link IE控制网络
说明： cclink -ie 通讯手册 ，需要的朋友可以看一看(cclink -ie Communication manual)
- 2021-04-22 11:48:49下载
- 积分：1
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shiyan3
基于阵列信号处理的跳频信号盲检测和参数盲估计matlab 仿真(Matlab simulation of blind detection of frequency hopping signal based on array signal processing)
- 2018-01-09 12:23:17下载
- 积分：1
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OFDM(16qam和qpsk调制）
OFDM调制发射和接收仿真，考虑两种调制方式，16qam及qpsk调制，使用LS信道估计和频域均衡(OFDM modulation transmission and reception simulation, considering two modulation modes, 16QAM and QPSK modulation, using LS channel estimation and frequency domain equalization.)
- 2018-12-12 05:25:28下载
- 积分：1
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QPSK_OFDM_simulink
采用QPSK调制方式实现OFDM，在simulink上搭建的仿真模块，可以很好的学习OFDM，验证通过。(Achieved using QPSK modulation OFDM, built on the simulink simulation module can be good learning OFDM.
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- 2011-09-21 14:40:30下载
- 积分：1
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卷积码的编码和VB译码
在MATLAB上设计一个（2，1，3）卷积编码器和对应的采用维特比译码算法的译码器。编码器的生成多项式为：[1 0 1；1 1 1]。将编码器的输出经过一个高斯白噪声信道的结果作为译码器的输入，观察比较译码器输出和编码器输入，了解卷积码的容错性，并计算译码结果的误比特率.(A convolutional coder (2, 1, 3) and corresponding decoder using Vitby decoding algorithm are designed on MATLAB. The generating polynomial of encoder is: [1 01; 11 1]. The output of the encoder through a Gauss white noise channel as a result of the decoder input, compare the output of the decoder and encoder input, understand the fault tolerance of convolutional code, and calculate the decoding results of bit error rate.)
- 2017-11-08 09:58:55下载
- 积分：1
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bbqehb
易语言四则运算源码,很不错的易语言源码,适合易语言爱好者学习,()
- 2018-01-03 17:46:57下载
- 积分：1
