Velocity Measurement of the Automobile Based on the Wavelet De-noising and STFT
This paper mainly deals with the velocity measurement of automotive millimeter wave radar. The echo from the noisy traffic environment often makes it difficult for the traditional frequency spectrum analysis and the complex timefrequency processing methods to accurately and briefly represent the automotive velocity.A new method based on the wavelet denoising and the short-time Fourier transform is proposed here to extract desired signal from interference and give a new time-frequency spectrum of the Doppler frequency,and calculate the moving velocity effectively. Higher signal to clutter ratio and higher resolutionInthe time-frequency distribution are obtained via the computer simulation and the actual gathered signal processing,and the velocity is also measured effectively. The method may widely apply to the velocity measurement of the moving goals of projectiles,ships and so on.
YAO Jin-jie HAN Yan
National Key Laboratory of Electronic Testing Technology North University of China Taiyuan,030051,China
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
902-905
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）