Research on Detection Methods to Periodic Pulsed Interference for L Band Microwave Radiometer in Time Domain

JIANG Tao; ZHAO Kai; WAN Xiangkun

doi:10.11999/JEIT170954

Volume 40 Issue 7

Jul. 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(7): 1539-1545

JIANG Tao, ZHAO Kai, WAN Xiangkun. Research on Detection Methods to Periodic Pulsed Interference for L Band Microwave Radiometer in Time Domain[J]. Journal of Electronics & Information Technology, 2018, 40(7): 1539-1545. doi: 10.11999/JEIT170954

Citation:

JIANG Tao, ZHAO Kai, WAN Xiangkun. Research on Detection Methods to Periodic Pulsed Interference for L Band Microwave Radiometer in Time Domain[J]. Journal of Electronics & Information Technology, 2018, 40(7): 1539-1545. doi: 10.11999/JEIT170954

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Research on Detection Methods to Periodic Pulsed Interference for L Band Microwave Radiometer in Time Domain

doi: 10.11999/JEIT170954

JIANG Tao^①②③ ZHAO Kai^①③ WAN Xiangkun^①②

Funds:

The Special Program for Science and Technology Basic Work of the Ministry of Science and Technology, China (2014FY201800-4)

Received Date: 2017-10-18
Rev Recd Date: 2018-03-27
Publish Date: 2018-07-19

Abstract

Abstract

L-band passive microwave remote sensing is an effective method for detection of soil moisture and ocean salinity. However, spectrum pollution from Global Positioning System (GPS), radar and electromagnetic radiation from some commercial electronic products can interfere with the detection of microwave radiometers, it results in a certain deviation to the ground observation, and reduces the retrieval accuracy of the surface parameters. Pulsed noise interference is simulated by experiment, its transmission characteristics in L-band (total power receiver) microwave radiometer system is observed, the correlation between the characteristics of the output signal and the radiometer parameters (integrating time and sensitivity) is analyzed, its digital characteristic parameters are obtained. Combining the method of Asynchronous Pulse Blanking (APB), a new AutoCorrelation Detection (ACD) algorithm is proposed, which can detect periodic pulsed radiation interference effectively. In the case that microwave radiometer system integrating time is 1 ms, it can detect the noise interference of 1.5 K, which meets the requirement of precision of surface parameters retrieved by satellite remote sensing.
- Microwave radiometer、Radio-frequency interference、AutoCorrelation Detection (ACD)、Asynchronous Pulse Blanking (APB)、Interference of pulsed radiation,

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References(18)

References

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