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QPSK
Direct sequence spread spectrum (DSSS) communication systems has been widely
used in these years for its advantage of wide spectrum, low working Signal-to-Noise
ratio (SNR), anti-interference, anti-multipath effect and capability of LPI and LPD.
They are increasingly replacing conventional communication forms and obtaining
extensively applications in modern military and commercial communication systems,
for example, CDMA communication system, GPS , measuring and control system,
satellite chain, identification of friend or foe and etc. Therefore, corresponding DSSS
electronic counter technique becomes a big problem to solve in electronic warfare
domain. DSSS electronic counter technique including blind detection, blind parameter
estimation and spreading sequences estimation. For the issue of DSSS electronic
counter technique of DSSS/QPSK signal damaged by strong additive white Gaussian
noise (AWGN), the main research content in this dissertation as follow.
- 2015-03-04 14:20:29下载
- 积分：1
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EngineeringandScientific
Engineering and Scientific Computations Using MATLAB
- 2010-01-04 11:42:49下载
- 积分：1
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ovsf
orthogonal variable spreading factor (OVSF) is an implementation of Code division multiple access (CDMA) where before each signal is transmitted, the spectrum is spread through the use of a user s code. User s codes are carefully chosen to be mutually orthogonal to each other.
These codes are derived from an OVSF code tree, and each user is given a different, unique code. An OVSF code tree is a complete binary tree that reflects the construction of Hadamard matrices.
- 2010-05-24 01:30:22下载
- 积分：1
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LMS2
用matlab实现lms算法，可以在信号处理中减小噪声的误差(Using matlab lms algorithm can reduce the noise in the signal processing error)
- 2013-04-12 23:25:23下载
- 积分：1
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kid
jaringan saraf tiruan
- 2011-12-21 00:44:44下载
- 积分：1
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LTE-1
Intercell Interference Coordination in OFDMA
Networks and in the 3GPP Long Term Evolution
System
- 2014-01-02 23:34:14下载
- 积分：1
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CRC16
it s a tiny code.i m looking forward to help someone
- 2009-04-18 18:59:00下载
- 积分：1
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12
说明： a file to genreate 16psk signal
- 2009-06-25 22:57:57下载
- 积分：1
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tuxiangruihua
说明： Matlab入门级图像处理程序__运用5种不同的梯度增强法进行图像锐化(Matlab image processing procedures for the entry-level __ gradient using 5 different methods for image enhancement sharpening)
- 2010-04-12 11:48:15下载
- 积分：1
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Stock-Forecaster-1
Stock forecast program source code
- 2011-08-29 19:24:02下载
- 积分：1
