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6
说明： 6. 在三条径的瑞利信道中，对于OFDM：
(1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。
(2) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。
(。
6 In the three path Rayleigh channel for OFDM:
(1) Please design a specific guide-assisted channel estimation method, the Simulink simulation, BPSK modulation measuring the bit error rate performance. Draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve.
(2) set the frequency has been synchronized, the design of a specific OFDM cyclic prefix used for time synchronization method, the Simulink simulation, draw-bit signal to noise ratio and capture probability curve.
(3) set time has been synchronized, the design of a specific OFDM cyclic prefix used for frequency synchronization method, the Simulink simulation, draw-bit signal to noise ratio and frequency synchronization error curves.)
- 2011-07-20 11:03:59下载
- 积分：1
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pm
说明： PM system payment e-voucher automatic.
- 2014-01-12 03:44:48下载
- 积分：1
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QRcode
QR码作为一种可高速、全方位识别的二维条码,已经在各行各业中得到了应用,并具有很大发展潜力.本文针对QR码图像的识别过程中可能遇到的图像噪声干扰、QR码占实际拍摄图像的一部分、倾斜、几何失真等问题进行了研究,提出了通过改进型中值滤波去除噪声,使用QR码符号特性定位并对倾斜图像进行旋转,对失真不严重的图像采用控制点变换和双线性插值方法进行几何校正.实验证明, 本文的方法简单有效, 可以用于提高条码的正确识别率.(As a high-speed, full identification of the two-dimensional bar code, QR code has been applied in all walks of life, and also has great potential for development. In this paper, aiming at QR code image recognition process may be encountered in noise interference, QR code accounting for the actual captured image just a part, slant, geometric distortion, and other issues have been studied, put forward through improved median filter to remove noise, use QR code symbol characteristics to locate and rotate the tilted image, distortion which is not serious use control-point transform and spatial bilinear interpolation method for geometric correction. The results show that this method is simple and effective, can be used to improve the QR code correct recognition rate.)
- 2010-12-19 23:54:18下载
- 积分：1
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firefly
简单的萤火虫算法matlab实现，大家可以下载了看看，并且进行改进。(Simple firefly algorithm matlab realize, we can download a look, and make improvements.)
- 2013-10-31 10:33:54下载
- 积分：1
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Current
current calculation maTLAB FILE
- 2013-04-13 19:13:09下载
- 积分：1
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FDTD
基于matlab利用一维FDTD方法对电磁波传播及反射透射进行仿真(Based on matlab using one-dimensional FDTD method and the reflection and transmission of electromagnetic wave propagation simulation)
- 2020-07-04 01:00:01下载
- 积分：1
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matlabRF
matlab RF的工具箱，简便查询RF的函数，还有实例，容易理解并能很快上手。(RF Toolbox
For Use with MATLAB)
- 2012-01-31 18:37:17下载
- 积分：1
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MPC
里面包括几部分预测控制程序，程序本人都验证过，没有错误。(Includes several parts predictive control program, the program are verified, there is no error.)
- 2015-10-31 12:32:19下载
- 积分：1
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chase
追赶法是用来解三对角矩阵的算法
此程序是基于matlab编的
(Catch-up method is used to solution of tridiagonal matrix algorithm for this procedure is based on the series matlab)
- 2007-12-02 23:22:39下载
- 积分：1
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Rayleigh9_awgn
Performance analysis of BICM based cooperative network over AWGN channels.
- 2009-04-03 02:59:22下载
- 积分：1
