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spreadspectrum
In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of
the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.
- 2012-04-12 20:54:14下载
- 积分：1
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FFT-Rife
Rife是一种频谱校正方法，分别给出了以上算法的Matlab程序并且画出了图形。( Rife is a spectrum correction method given above algorithm Matlab program and draw graphics.)
- 2013-05-20 21:03:08下载
- 积分：1
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new
本文介绍了一个新的降低ofdm中的PAPR的方法(This article describes a new reduction of the PAPR in ofdm method)
- 2009-05-13 10:26:17下载
- 积分：1
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Matlab_amp
第三版天线经典教材的源代码，让大家一起学习了！！！！(Third edition of the antenna, the source code of the classic textbook, so that we learn together! ! ! !)
- 2010-12-19 16:28:56下载
- 积分：1
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iniparser
INI parser impelemantation for LPC1769
- 2013-05-08 06:37:27下载
- 积分：1
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Adaptivenotchfilter
在自适应信号的理想输入为有正弦信号。噪声输入也为一正弦信号。它们相互迭加，再经过LMS自适应算法，再比较它们的结果。(In an ideal adaptive signal has sinusoidal input signal. Noise input for a sinusoidal signal. Their mutual superposition, and then after LMS adaptive algorithm, and then compare their results.)
- 2008-05-26 12:27:51下载
- 积分：1
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complexnetwork
复杂网络中的sw小世界模型和无标度BA模型的生成程序(sw model and BA scale free model )
- 2010-01-25 11:28:01下载
- 积分：1
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apertura
研究在最佳时空信号处理情况下，连续脉冲合成孔径侧视雷达天线的方向图(study in the radiation pattern of a coherent pulsed radar station side scan at optimum processing of the observed space-time signal.)
- 2013-11-09 20:27:33下载
- 积分：1
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paper2
Multiple Doppler frequency offsets compensation technique for high-mobility OFDM uplink
- 2015-02-01 12:41:26下载
- 积分：1
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notch_filter_50hz.rar
一个滤除50Hz及其整倍数的陷波器生成代码，以及对其产生原理的说明。(A filter and a whole multiple of 50Hz notch generated code, and a description of its principle of generation.)
- 2013-05-26 16:07:10下载
- 积分：1
