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URBANPATHLOSSMODEL
The overall objective for LTE is to provide an extremely high performance radio-access technology that offers full vehicular speed mobility and that can readily coexist with HSPA and earlier networks. OFDM/OFDMA technology is introduced for the LTE downlink, supporting very high data rates of up to 300Mbps while Single-Carrier FDMA (SC-FDMA) is used in the uplink with data rates of 80Mbps possible. Additionally, LTE supports operation both in paired and unpaired spectrum (FDD and TDD) using channel bandwidths of approximately 1.4MHz up to 20MHz. The frequency domain scheduling can be done in OFDMA. One of the main challenges in OFDMA is the high peak-to-average radio of the transmitted signal, which requires linearity in the transmitter. The linear amplifiers have low efficiency therefore, OFDMA is not an optimized solution for a mobile uplink where the
- 2013-01-01 13:30:17下载
- 积分：1
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digitalmod
数字通信调制信号模拟系统:MASK：2ASK，4ASK，8ASK
MPSK：2PSK、4PSK、8PSK
MFSK：2FSK、4FSK、8FSK 分连续相位CPFSK和离散相位DPFSK两种
MQAM：16QAM、32QAM、64QAM、128QAM
OFDM：子载波数可任意选定，映射方式有BPSK、QPSK、4QAM、16QAM、32QAM、64QAM
(Digital communication modulation signal simulation system: MASK: 2ASK, 4ASK, 8ASK MPSK: 2PSK 4PSK 8PSK MFSK: 2FSK 4FSK 8FSK continuous phase the of CPFSK and the discrete phase DPFSK both MQAM: 16QAM, 32QAM, 64QAM, 128QAM OFDM: sub- carriers can be arbitrarily selected, and mapping methods are BPSK, QPSK, 4QAM, 16QAM, 32QAM, 64QAM)
- 2013-05-01 15:53:21下载
- 积分：1
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erji
能够二进制扩频系统，使开发轻而易举使大家找到代码和学习的方法(this can help us use matlab)
- 2011-12-29 22:13:50下载
- 积分：1
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LMS
实现了自适应信号处理LMS算法，分别绘出当w(0)=[0,0]T, =0.1及w(0)=[4, 10]T, =0.05时，LMS算法在两种下的权值变化轨迹、误差e(n)与迭代次数n的关系曲线(The LMS adaptive signal processing algorithm)
- 2013-05-11 17:24:33下载
- 积分：1
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simulate
循环冗余校验CRC (Cyclic Redundancy Check)码是由分组线性码的分支而来，其主要应用是二元码字。编码简单且误判概率很低，在通信系统中得到了广泛的应用。循环冗余校验码是属于分组码中的一类重要的线性码，它不仅在理论上具有很好的代数结构，而且其编码和译码可以通过线性移位寄存器很容易地实现。
通过对CRC的分析和基于MATLAB工具的仿真，充分证明了CRC的检错能力很强，编码简单。
(Cyclic Redundancy Check CRC (Cyclic Redundancy Check) code is a linear code from the sub-branch from the main application is the binary code word. Coding is simple and very low probability of miscarriage of justice, in the communication system has been widely used. Cyclic redundancy check code is a block code in one important class of linear code, which not only has good in theory, algebraic structure, and its encoding and decoding of linear shift register can easily realize . CRC through analysis and simulation tool based on MATLAB, and fully proves that the CRC error detection ability of a strong, simple coding.)
- 2008-03-02 23:40:09下载
- 积分：1
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MUSIC
采用MUSIC方法的白噪声频率检测仿真
白噪声中单个正弦信号的频率检测与估计
白噪声中多个正弦信号的频率检测与估计
(MUSIC method using white noise white noise simulation of the frequency of detection of a single frequency sinusoidal signal detection and estimation of white noise in the frequency of a number of sinusoidal signal detection and estimation)
- 2009-05-12 22:59:33下载
- 积分：1
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Spectrum_Zoom
这个函数返回n点2dw波段的傅里叶变换的DFT样本序列。通常情况下，以插值点的方式进行放大。(This function returns N point DFT samples of 2dw band of Fourier transform of a sequence. Typically, fft() returns N samples of Fourier transform ranging from 0 to 2pi. This function takes the N-point DFT samples and returns N-point samples corresponding to frequency band wc-dw to wc+dw.)
- 2009-12-29 06:42:22下载
- 积分：1
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tuxiangfengede
GUI &...Vc++下如何利用Matlab工具箱进行数字信号处理 用Matlab和Protel设计微机保护中Butterworth模拟低通滤波器 MATLAB与图象处理...斑竹完成的通信原理MATLAB仿真系统(GUI )
- 2007-06-10 12:45:11下载
- 积分：1
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OLS_simple
simple ols code for matlab
- 2015-01-28 14:49:01下载
- 积分：1
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UKFPFUPF
upf滤波算法程序，利用MATLAB编写，相当好用(upf filtering algorithm procedure, and use MATLAB to prepare, very easy to use)
- 2010-01-02 18:52:38下载
- 积分：1
