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实现QPSK位同步G算法Gardner
说明： 实现QPSK位同步G算法，方法很经典，可以查看小数u和误差变化(Gardner matlab
The QPSK bit synchronization g algorithm is implemented. The method is very classical, and the decimal u and error change can be viewed)
- 2020-02-13 18:46:32下载
- 积分：1
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OFDM-simulation
OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。(OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced.
Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results.
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- 2012-07-06 16:11:38下载
- 积分：1
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margin_Budget
说明： 根据卫星EIRP值、接收系统G/T值等参数仿真了卫星通信的上下行及总链路预算的matlab程序 及论文《卫星传输链路的计算与应用》(uplink and downlink margin budget)
- 2020-07-07 09:57:15下载
- 积分：1
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2×2的alamouti方案实现
说明： 可直接函数调用，根据Alamouti原始论文编写，双发双收。支持BPSK、QPSK、16QAM仿真的即时结果输出。(It can be called directly. It is written according to the original paper of Alamouti, with double sending and double receiving. Support real-time result output of BPSK, QPSK and 16QAM simulation.)
- 2020-04-03 02:01:36下载
- 积分：1
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msk
利用锁相环来实现MSK信号的定时同步，采用的是gardner算法(Using phase-locked loop to achieve timing synchronization of MSK signal, Gardner algorithm is adopted.)
- 2021-04-07 20:19:01下载
- 积分：1
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ns-agent
class ns-agent the default parameters
- 2010-01-09 05:18:22下载
- 积分：1
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HARQ
HARQ技术研究，以喷泉码为研究对象，结合LDPC纠错码而研究的。(HARQ technology research to fountain codes for the study, and research combined with LDPC error correction code.)
- 2015-05-21 16:54:15下载
- 积分：1
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BFSK信号
生成bsk信号，观察其时域及频域下的波形。(Generating bpsk signal)
- 2018-05-01 19:55:03下载
- 积分：1
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bpsk_awgn
BPSK调制方式AWGN信道的理论误码率、仿真误码率以及瑞利信道下的理论值和仿真误码率(Theoretical BER of BPSK modulation AWGN channel BER simulation and theoretical value of the Rayleigh channel simulation error rate)
- 2021-01-16 21:38:46下载
- 积分：1
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IEC-61850标准[中文.完整版]
IEC61850中文版全套资料（14个文件）及学习心得。(Full set of data in Chinese version of IEC61850.)
- 2021-03-09 15:59:27下载
- 积分：1
