The System Design of Wide Frequency Band and High Speed Digital System of Hyperspectral Microwave Radiometer

LUO Yang-jin; ZHANG Sheng-wei; LU Hao

doi:10.12263/DZXB.20190815

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The System Design of Wide Frequency Band and High Speed Digital System of Hyperspectral Microwave Radiometer

更新时间：2025-12-08

- The System Design of Wide Frequency Band and High Speed Digital System of Hyperspectral Microwave Radiometer
- Acta Electronica Sinica Vol. 49, Issue 2, Pages: 380-386(2021)
- 作者机构：
  
  1. 中国科学院国家空间科学中心微波遥感技术重点实验室,北京,100190
  2. 中国科学院大学,北京,100190
  3. 中国科学院国家空间科学中心微波遥感技术重点实验室,北京,100190
  4. 中国科学院大学,北京,100190
- 作者简介：
- 基金信息：
  
  National Key Research and Development Program of China (No.2018YFB0504900, No.2018YFB0504902)
- DOI：10.12263/DZXB.20190815
  CLC： TP6
- Published Online：25 February 2021，
  
  Published：2021
- 稿件说明：
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LUO Yang-jin, ZHANG Sheng-wei, LU Hao. The System Design of Wide Frequency Band and High Speed Digital System of Hyperspectral Microwave Radiometer[J]. Acta Electronica Sinica, 2021, 49(2): 380-386.
DOI：

LUO Yang-jin, ZHANG Sheng-wei, LU Hao. The System Design of Wide Frequency Band and High Speed Digital System of Hyperspectral Microwave Radiometer[J]. Acta Electronica Sinica, 2021, 49(2): 380-386. DOI： 10.12263/DZXB.20190815.

摘要

高光谱微波辐射计是基于频谱分析技术的精细谱段微波辐射计，通过增加探测通道实现高垂直分辨率大气探测，解决传统微波辐射计通道数少，频谱分辨率低的问题.该系统采用高性能模数转换器（Analog-to-Digital Converter，ADC）实现对模拟输入信号进行10Gsps采样，8bit量化，并基于高性能现场可编程门阵列（Field Programming Gate Array，FPGA）芯片获取输入信号的功率谱.文章详细介绍了宽带高速数字系统设计、器件选型和测试方法，给出了测试结果，分析表明硬件系统设计符合设计要求.

Abstract

Hyperspectral microwave radiometer is based on the technological analysis of spectrum. It is able to increase vertical resolution of measurement of atmosphere by increasing frequency measurement channels. The back-end system of hyperspectral microwave radiometer sampled analogical signal with 4GHz frequency band at 10Gsps by using high-performance analog-to-digital converter (ADC). The output digital signal from ADC was dealt with on field programming gate array (FPGA) by implementing the algorithm of power spectrum. The detailed subsystem design

the ways to choose components meeting the design requirements and the testing methods were presented. In addition

some basic test results and analysis results were presented.

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