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Hilbert_text1
希尔伯特变换测试，使用希尔伯特变换对信号处理，相位偏移90°(The Hilbert transform test uses Hilbert transform to process the signal with a phase shift of 90 degrees)
- 2020-12-29 18:19:01下载
- 积分：1
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Twwh
本论文以OFDM系统为基础，介绍了OFDM系统的基本原理，以及使用OFDM技术的优势所在，并且展望了今后的无线移动技术的发展前景。在简单介绍OFDM原理的同时，着重阐述了OFDM系统在不同信道环境和不不同实现方式下的误码性能。主要包括了OFDM系统在加性白高斯信道，在加性白高斯信道和多径干扰两种不同信道环境下系统的误码性能，其中后者还研究了系统在有保护间隔与无保护间隔的误码性能比较。在理论分析的基础
(This thesis is based on the OFDM system, the basic principle of the OFDM system, as well as the advantages of using OFDM technology, and future prospects for the development of future wireless and mobile technologies. OFDM principle in brief, focusing on the BER performance of OFDM systems under different channel conditions and different implementations. Including OFDM system in additive white Gaussian channel, additive white Gaussian channel and multipath interference of two different channel environment, the system BER performance, the latter of which also studied the system in a protected interval without guard interval BER performance comparison. The basis of theoretical analysis)
- 2021-04-28 13:08:43下载
- 积分：1
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单脉冲和差波束法测角的matlab代码及支持函数
说明： 单脉冲和差波束法测角的matlab代码及支持函数，生成和差波束鉴角曲线，可以直接运行(The matlab code and support function of single pulse sum difference beam angle measurement can generate sum difference beam angle discrimination curve and run directly)
- 2021-01-05 17:18:53下载
- 积分：1
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MISO
miso in wireless sensor network
- 2021-04-19 20:38:50下载
- 积分：1
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Multipath-channel-simulation
时变多径信道的matlab仿真（通过输入多普勒频移，时延变量等参数）(Multipath channel simulation)
- 2011-09-20 21:08:45下载
- 积分：1
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代码
说明： 基于MATLAB语言实现了BPSK、QPSK和QAM在数字通信中的误码率性能，并与理论性能进行了比较。实现了两个发射天线的分集，分析了分集提高误码率性能的原因和实质。(Based on MATLAB language, the BER performance of BPSK, QPSK and QAM in digital communication is realized and compared with the theoretical performance. The diversity of two transmit antennas is realized, and the reason and essence of diversity improving BER performance are analyzed.)
- 2020-08-14 09:17:47下载
- 积分：1
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ns2-extension
介绍如何对NS2进行多信道多接口扩展，并支持动态信道分配。(NS2 introduce how to carry out the expansion of multi-channel multi-interface, and supports dynamic channel allocation.)
- 2009-03-12 20:28:24下载
- 积分：1
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MIMO OFDM
实现基于STBC的MIMO_OFDM通信系统在不同信噪比情况下接收端的误比特率的仿真。发射端包括基于基带调制、空时编码、导频插入、IFFT、串并合并以及添加循环前缀；接收端包括去除循环前缀、取出导频估计信道、FFT运算以及并串合并，空时解码等。仿真中采用QPSK、空时编码采用4*3的复正交空时编码矩阵。OFDM子载波数为100，每个子载波传输66个符号，每个符号2比特。IFFT长度为512个符号。发射天线为3个接收天线为2个。(The BER simulation of MIMO_OFDM communication system based on STBC under different SNR is realized. The transmitter includes baseband modulation, space-time coding, pilot insertion, IFFT, serial-parallel combination and adding cyclic prefix; the receiver includes removing cyclic prefix, extracting pilot estimation channel, FFT operation, parallel-serial combination, space-time decoding, etc. The complex orthogonal space-time coding matrix is used in QPSK and space time coding in 4*3. The number of OFDM subcarriers is 100, and each subcarrier transfers 66 symbols with 2 bits per symbol. IFFT is 512 symbols in length. The transmitting antenna is 3 receiving antennas, 2.)
- 2020-12-07 16:19:21下载
- 积分：1
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MIMO系统中能效优化方法仿真
说明： MIMO系统中能效优化方法仿真，大规模MIMO系统中能效优化方法研究(Simulation of energy efficiency optimization method in MIMO system)
- 2020-08-26 17:12:41下载
- 积分：1
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MATLAB和opnet联调
opnet与matlab联调的步骤，过程详细，使用方便(Steps of OPNET and MATLAB debugging, detailed process, easy to use)
- 2021-01-31 21:50:08下载
- 积分：1
