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一种基于高阶累积量的数字调相信号识别方法
说明： 对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)
- 2020-06-21 09:40:02下载
- 积分：1
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pipeilvbo
匹配滤波器的实现。主要是通过fft变化使输出自相关最大，在通过滤波器。(Matched filter implementation. Mainly through changes in the output autocorrelation fft the largest through the filter.)
- 2010-01-03 18:14:33下载
- 积分：1
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PUSCH_mapping
该程序为LTE中3GPP协议的PUSCH信道的物理资源映射程序，可进行物理层链路的资源映射部分(The program is a physical resource mapping program for the PUSCH channel of the 3GPP protocol in LTE, and the resource mapping part of the physical layer link)
- 2017-09-26 21:29:05下载
- 积分：1
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Paper230
Adaptive Radio Resource Management for GSM using Neural Networks and Genetic Algorithms
Ken Murray and Dirk Pesch
Adaptive Wireless Systems Group
- 2012-12-11 19:49:09下载
- 积分：1
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17869356wendu
有关CC2430的文档，里面的东西很实用，希望对你有帮助(The CC2430 document, which is very useful stuff, want to help you)
- 2010-03-10 12:43:37下载
- 积分：1
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xws-security-3.0
xws-security-3.0 ws安全包3.0版本(xws security 3.0 for development)
- 2014-04-23 16:57:39下载
- 积分：1
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Polynomial_Pre_with_Saleh
说明： 该程序给出了利用Saleh模型进行功率放大器预失真的过程．(The program gives the power amplifier pre-distortion with Saleh models.)
- 2021-02-06 14:39:56下载
- 积分：1
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3G
说明： 3G方面的论文，TD-CDMA WCDMA(Papers on 3G, TD-CDMA WCDMA)
- 2011-05-05 10:55:12下载
- 积分：1
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05441004
Multiple input multiple output techniques combined
with orthogonal frequency division multiplexing (MIMO-OFDM)
provide a promising approach for wireless systems. However, a
serious drawback of the OFDM system is the high peak-toaverage
power ratio (PAPR), which may severely affect the
power efficiency of RF power amplifiers. In this paper, we
propose a simple method to reduce the PAPR of MIMO-OFDM
signals based on the use of unused subcarriers. Instead of
processing the signals at each transmitter separately, a peak
cancelling signal is generated at one antenna and is then applied
to all the others with only simple modifications. Simulation has
shown that a minimum 2 dB reduction in PAPR can be achieved
for all transmit signals using this approach. As the signal
processing is nearly all done at a single transmitter, repetition of
the operations at each transmitter is avoided, and therefore the
overall cost of the system can be significantly reduced.
- 2011-11-05 01:46:42下载
- 积分：1
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n428
GSM reading book in the would
- 2018-01-11 20:53:23下载
- 积分：1
