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城市公共交通IC卡技术规范
交通部发行的城市公共交通IC卡技术规范,用于CPU卡规范(Technical Specification of IC Card for Urban Public Transportation issued by the Ministry of Communications for CPU Card Specification)
- 2020-06-24 20:20:01下载
- 积分:1
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adhoc-network
对学习AD HOC网络很有帮助的一些电子文档,可以了解此网络的基本原理和一些协议之间的比较,以及改进。大家看看肯定会有所帮助哦(The study of electronic document helpful AD HOC network)
- 2012-03-10 20:31:57下载
- 积分:1
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bpskandqpskandmsk
说明: matlab的bpsk,qpsk,msk,qam打包下载,不是自带的程序函数。按照通信框图做的程序(MATLAB,bpsk,qpsk,msk,qam)
- 2010-04-07 22:44:41下载
- 积分:1
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PCM
说明: 在实际的调谐解调电路中,采用的是非相干载波解调,本振信号与发射端的载波信号存在频率偏差和相位抖动,因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决,得到的数字信号也不是原来发射端的调制信号,误差的积累将导致抽样判决后的误码率增大,因此数字QPSK解调电路要对载波误差进行补偿,减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)
- 2019-01-30 20:16:08下载
- 积分:1
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mmWave_Channel_Model-master
说明: 使用matlab进行毫米波信道模型仿真,很棒的源码(Millimeter-wave channel model simulation using matlab, great source code)
- 2019-03-07 16:28:43下载
- 积分:1
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sd模型
说明: 完整的Verilog验证模型,包括设备完整的状态。(Complete verilog Verification Model)
- 2020-06-16 09:00:01下载
- 积分:1
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B1C信号的调制
说明: BOC调制的Matlab程序仿真及Simulink模型(Matlab program and BOC modulation simulation model of Simulink)
- 2021-04-17 19:18:52下载
- 积分:1
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AWGN
说明: qpsk在高斯信道下的仿真,包括误码率和仿真图(Simulation of QPSK in Gaussian channel)
- 2019-01-01 16:14:30下载
- 积分:1
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北斗导航接收机抗干扰算法研究_陈亚男
说明: 基于子空间投影的 CSMG 波束形成算法,是一种将子空间投影与波束形成技术相
结合的抗干扰方法。该方法首先构造干扰子空间的正交补空间,再将天线阵列接收到的空时信号矢量向其投影,然后对投影后的输出信号采用具有严格约束最小功率的抽样矩阵梯度(CSMG)算法,在固定方向上进行波束形成,最后捕获、定位及解算出每个波束得到的无干扰数据等,可以有效地抑制干扰信号,同时又可以更好的保留期望信号。(The algorithm of the CSMG beamforming based on subspace projection, which is a combination of the Subspace projection and beam forming technology. Firstly, the data vector received by antenna array is projected onto the interference subspace, which is orthogonal to interference subspace for achieving interference suppression. And then, by using the method of the strictly constrained minimum power sampling matrix gradient(CSMG), after the projection of the subspace, the signal is beamformed in a fixed direction. Finally, for jammer-free data of each beam achieved to capture, locate, solute and so on. The ability of the suppress interference by this method, which can be more effectively, and keep the desired signal better.)
- 2019-06-16 20:57:33下载
- 积分:1
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CRC16
在Matlab环境下用于计算CRC16的代码,本原多项式为X16+X15+X2+1,并提供测试文件。(In the Matlab environment for the calculation of CRC16 code, the primitive polynomial is X16+X15+X2+1, and provide the test file.)
- 2021-01-04 10:18:55下载
- 积分:1