Sensitivity Analysis Based on Digital Correlation Fully Polarized Microwave Radiometer

DANG Peng-ju; HE Zheng; LI Peng-fei

doi:10.3969/j.issn.0372-2112.2020.10.010

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Sensitivity Analysis Based on Digital Correlation Fully Polarized Microwave Radiometer

更新时间：2023-02-24

- Sensitivity Analysis Based on Digital Correlation Fully Polarized Microwave Radiometer
- Acta Electronica Sinica Vol. 48, Issue 10, Pages: 1938-1942(2020)
- 作者机构：
  
  中国航天科技集团公司五院西安分院,陕西,西安,710100
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2020.10.010
  CLC： TP732+.1
- Published Online：25 October 2020，
  
  Published：2020
- 稿件说明：
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DANG Peng-ju, HE Zheng, LI Peng-fei. Sensitivity Analysis Based on Digital Correlation Fully Polarized Microwave Radiometer[J]. Acta Electronica Sinica, 2020, 48(10): 1938-1942.
DOI：

DANG Peng-ju, HE Zheng, LI Peng-fei. Sensitivity Analysis Based on Digital Correlation Fully Polarized Microwave Radiometer[J]. Acta Electronica Sinica, 2020, 48(10): 1938-1942. DOI： 10.3969/j.issn.0372-2112.2020.10.010.

摘要

灵敏度是表征微波辐射计能够检测到最小亮温变化的能力，是微波辐射计一项重要指标.本文针对数字相关型全极化微波辐射计，提出了一种使用相关器输出的计数值计算各通道灵敏度的方法，并通过了实验验证.对比模拟通道灵敏度和数字通道灵敏度，分析了量化噪声和通道间串扰对灵敏度的影响.

Abstract

Sensitivity is the ability of microwave radiometer to detect the minimum temperature change and is an important index of microwave radiometer.In this paper

a method of calculating the sensitivity of each channel by means of the output of the correlator is proposed for the digital correlation full polarized microwave radiometer.The effects of quantization noise and crosstalk on sensitivity of analog channel and digital channel are analyzed.

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