Development of a miniaturized spectrum-type plasma wave receiver comprising an application-specific integrated circuit analog front end and a field-programmable gate array
Development of a miniaturized spectrum-type plasma wave receiver comprising an application-specific integrated circuit analog front end and a field-programmable gate array
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开发包含专用集成电路模拟前端和现场可编程门阵列的小型化频谱型等离子体波接收器
DOI：
10.1088/1361-6501/ab0821
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发表时间：
2019
影响因子：
2.4
通讯作者：
Hamano Takuya
中科院分区：
文献类型：
--
作者：
Zushi Takahiro;Kojima Hirotsugu;Kasahara Yoshiya;Hamano Takuya
等离子体波是卫星原位观测了解太空电磁现象的重要目标。最近的科学卫星搭载了基于快速傅里叶变换（FFT）的频谱接收器；然而，此类接收器有一个缺点，因为它们使用宽带模拟部件。新接收机克服了这一缺点，在模拟部分的第一级增加了频带限制，并通过切换其截止频率覆盖了每个频带的整个观测频率范围。为了缩小电路尺寸，新型接收器包括专用集成电路（ASIC）和现场可编程门阵列（FPGA）。 ASIC芯片包括接收器的模拟部分和模数转换器，FPGA包括FFT模块和接收器的控制器。所提出的频谱接收器已成功实现，尺寸为55 mm×80 mm×35 mm，总功耗为948.3 mW。接收机的时间分辨率为112 ms，10 Hz~1 kHz、1 kHz~10 kHz、10 kHz~100 kHz频段的频率分辨率分别为13 Hz、130 Hz、1.3 kHz。总体而言，所开发的接收器显示出足够的等离子波观测性能。
Plasma waves are an important target for satellite-based in situ observation to understand electromagnetic phenomena in space. Recent scientific satellites have carried fast Fourier transform (FFT)-based spectrum receivers; however, such receivers have a disadvantage because they use wideband analog parts. The new receiver overcomes the disadvantage by adding bandlimiting in the first stage of the analog part, and it covers the entire observation frequency range of each band by switching its cutoff frequency. In order to miniaturize circuit size, the new receiver comprises application-specific integrated circuits (ASICs) and a field-programmable gate array (FPGA). The ASIC chip includes the analog part of the receiver and the analog-to-digital converter, and the FPGA includes an FFT module and the controller of the receiver. The proposed spectrum receiver was successfully implemented with a size of 55 mm× 80 mm× 35 mm and a total power consumption of 948.3 mW. The time resolution of the receiver was 112 ms, and the frequency resolutions for frequency bands from 10 Hz to 1 kHz, from 1 kHz to 10 kHz, and from 10 kHz to 100 kHz were 13 Hz, 130 Hz, and 1.3 kHz, respectively. Overall, the developed receiver showed sufficient performance for plasma wave observation.