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A New Subcarrier Demodulator of Satellite Telemetry Approaching to the Ideality Based on the Digital Signal

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4 Author(s)
Liu Suxiao ; Sch. of Electron. & Inf. Eng., Beijing Univ. of Aeronaut. & Astronaut., Beijing, China ; Xiong Huagang ; Feng Wengquan ; Zhao Hongbo

In the deep space communication under the USB (unified S-band) system, the channel coding is generally used in the telemetry down-link. To get the coding gain, the subcarrier demodulation model needs to work reliably under the low Es/No. In this paper, a new BPSK subcarrier demodulation model of digital signal is introduced. This demodulation model is able to work well when the Eb/N0 is up to 1 dB, also its demodulation loss is very low. So it is applicable for the bad telemetry channel.

Published in:

Future Information Technology and Management Engineering, 2009. FITME '09. Second International Conference on

Date of Conference:

13-14 Dec. 2009