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非规则LDPC码在AWGN信道下的性能仿真
非规则LDPC码在AWGN信道下的性能仿真，码长1024，码率0.5，调制方式QPSK(simulation of LDPC codes in AWGN channel)
- 2020-06-28 18:20:01下载
- 积分：1
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mod_demod
在matlab环境下实现通信系统中的BPSK，QPSK，16QAM，调制。成型滤波和匹配滤波都采用根升余弦函数。(In the matlab environment to achieve communication system BPSK, QPSK, 16QAM, modulation. Shaping filter and matched filter are used root raised cosine function.
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- 2010-12-01 23:28:12下载
- 积分：1
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LTE_filter
LTE变采样滤波器的设计，应用在USRP平台，100M采样率变到30.72M采样率，以及30.72M采样率变换到100M采样率，文档说明，matlab源代码，以及性能仿真(LTE varying sampling filter design, used in USRP platform, 100M sampling rate changes to 30.72M sampling rate, and sample rate conversion 30.72M to 100M sampling rate, documentation, matlab source code, and performance simulation)
- 2021-04-12 12:18:57下载
- 积分：1
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OFDM_CE
基于梳状导频的LS信道估计算法与无信道估计算法性能对比(Performance Comparison between LS Channel Estimation Algorithm and Channelless Estimation Algorithm Based on Comb Pilot)
- 2020-11-29 12:49:30下载
- 积分：1
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VAWECOM
vawecom gsm modem gsm,gprs,ip stack documentation(vawecom gsm modem gsm, gprs. ip stack documentation)
- 2007-02-24 21:02:44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
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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1-5V转4-20mA
标准接口1-5V转换成4-20mA程序，应用于标准传感器接入(Standard Interface 1-5V Converting 4-20mA Program for Standard Sensor Access)
- 2020-06-22 13:40:02下载
- 积分：1
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mimo
说明： 一个4*8天线数的mimo仿真程序，采用16QAM调制解调，在平坦衰落环境下的误码率情况(a 4* 8 the number of MIMO antenna simulation program using 16QAM modulation and demodulation, the decline in flat environment of the BER)
- 2021-01-05 17:08:54下载
- 积分：1
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蓝牙打印机_漠北 v1.1 2018-11-26
安卓手机调用蓝牙实现热敏打印机打印，多品牌打印机可用(Android mobile phone calls Bluetooth to print thermal printers, multi-brand printers are available)
- 2020-06-17 11:40:02下载
- 积分：1
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LDPC_802.16e仿真代码
可以产出LDPC_802.16e码字，不同码长不同码率(creat LDPC_802.16e ldpc code)
- 2018-06-13 12:00:48下载
- 积分：1
