Techniques of signal extracting for remote sensing system

Liang Wang; Qi Feng; Huixing Gong

doi:10.1117/12.317817

18 August 1998 Techniques of signal extracting for remote sensing system

Liang Wang, Qi Feng, Huixing Gong

Proceedings Volume 3505, Imaging System Technology for Remote Sensing; (1998) https://doi.org/10.1117/12.317817
Event: Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 1998, Beijing, China

Abstract

The techniques of signal extracting and processing for remote sensing system are discussed in this paper. We are now developing a ten-band ocean color and temperature scanner for observing the ocean color. Because each spectral bandwidth is quite narrow and the reflectivity of water is very low, it is very important for the sensor to have a high sensitivity. The performance of detector limits the performance of sensor. Two kinds of detector are used in this sensor. The parameters and the operating modes of these detectors are introduces in this paper. Two kinds of preamplifier are also introduced. One is transimpedance amplifier that converts the output current from Si PV detectors to voltage signal. The other is instrument amplifier, which is used to amplify the output voltage of HgCdTe photoconductor. The equivalent input noises of these circuits are analyzed in detail. The parameters of the ten- band sensor are calculated finally.

Citation Download Citation

Liang Wang, Qi Feng, and Huixing Gong "Techniques of signal extracting for remote sensing system", Proc. SPIE 3505, Imaging System Technology for Remote Sensing, (18 August 1998); https://doi.org/10.1117/12.317817

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