FREQUENCY DISPERSION OF THE HF BACKSCATTER CHANNAI

Zhang Xiu-ju

doi:10.11728/cjss1989.03.216

Volume 9 Issue 3

Aug. 1989

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Article Navigation > Chinese Journal of Space Science > 1989 > 9(3): 216-220

Zhang Xiu-ju. FREQUENCY DISPERSION OF THE HF BACKSCATTER CHANNAI[J]. Chinese Journal of Space Science, 1989, 9(3): 216-220. doi: 10.11728/cjss1989.03.216

Citation:

Zhang Xiu-ju. FREQUENCY DISPERSION OF THE HF BACKSCATTER CHANNAI[J]. Chinese Journal of Space Science, 1989, 9(3): 216-220. doi: 10.11728/cjss1989.03.216

Zhang Xiu-ju. FREQUENCY DISPERSION OF THE HF BACKSCATTER CHANNAI[J]. Chinese Journal of Space Science, 1989, 9(3): 216-220. doi: 10.11728/cjss1989.03.216

Citation:

Zhang Xiu-ju. FREQUENCY DISPERSION OF THE HF BACKSCATTER CHANNAI[J]. Chinese Journal of Space Science, 1989, 9(3): 216-220. doi: 10.11728/cjss1989.03.216

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FREQUENCY DISPERSION OF THE HF BACKSCATTER CHANNAI

doi: 10.11728/cjss1989.03.216 cstr: 32142.14.cjss1989.03.216

Zhang Xiu-ju

China Research Institute of Radio-wave Propagation, Xinxiang

Received Date: 1988-08-23
Rev Recd Date: 1900-01-01
Publish Date: 1989-08-24

Abstract

Abstract

In this paper an experiment to measure the frequency changes in an ionospheric channal by HFbackscatter techniques are described. The method of the digital spectra analysis are used, the variations of the Doppler frequency shifts and frequency spread versus time of the day are discussed. By comparing with the land echo spectra and response echo spectra, the results show that in HFbackscatter the contribution of the land to Doppler frequency shifts does not exist, but it affects the spectra width.