An OFDM Modulation Recognition Algorithm Based on Spectrum Analysis
This paper presents the feature of energy distribution parameters for power spectrum. Then based on the spectrum analysis, an OFDM recognition method is proposed using the energy distribution parameter P..the kurtosis coefficient of the power spectrum and the power spectrum parameter R. Power spectrum is preprocessed to eliminate the effect of signal bandwidth, sampling rate, carrier frequency and FFT points on the threshold of identification. This method does not require any prior knowledge (such as symbol rate, carrier frequency, etc.), and the IF signal can be directly processed. Simulation results show that the extracted parameters have good performances in both AWGN and Rayleigh fading channel. The recognition accuracy is up to 97％ with a signal to noise ratio (SNR) at 10dB.
OFDM identification power spectrum kurtosis coefficient energy distribution
Yanrui Zhu Bin Tian Ruiqi Ma Yongjun Sun Jinkun An Kechu Yi Yuxin Ren
State Key lab of Intergrated Services Networks, Xidian University, Xi’an 710071 P.R.China School of Information Science and Engineering, Shandong University, Ji’nan 250100 P.R.China
国际会议
2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)
北京
英文
1557-1560
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）