UHF/VHF 立方衛星無線通訊系統開發平台;UHF/VHF dual band transceiver development platforms for CubeSat

NCUIR > Engineering College > Graduate Institute of opto-Mechatronics > Electronic Thesis & Dissertation > Item 987654321/80565

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/80565

Title:	UHF/VHF 立方衛星無線通訊系統開發平台;UHF/VHF dual band transceiver development platforms for CubeSat
Authors:	葉丞偉;Ye, Cheng-Wei
Contributors:	光機電工程研究所
Keywords:	立方衛星;無線通訊;追蹤遙測及控制;CubeSat;wireless communication;TT&C
Date:	2019-07-16
Issue Date:	2019-09-03 14:45:50 (UTC+8)
Publisher:	國立中央大學
Abstract:	本論文以開發適用於立方衛星(Cube Satellite)之半雙工雙頻無線電模組為目標，系統均以COTS(Commercial Off-The-Shelf)元件設計與實現，通訊規格參考主流業餘無線電立方衛星協議與調變模式，開發144-146Mhz、435-438Mhz雙頻段收發機模組。文中研議通訊系統與射頻系統的規格需求，設計無線電射頻與基頻系統硬體，包括微控制器，射頻調變晶片，低雜訊放大器及功率放大器，並分析計算其中各項子系統與整體系統的理論性能，供後續驗證參考。最後透過各個次系統的性能實驗驗證，整體通訊誤碼驗證，估測此無線電收發機系統理論性能，於誤碼率10^-4時可達-118dBm，接收EIRP為50dBm的地面站發射之訊號，UHF與VHF最大通訊距離分別為6913公里與19977公里。 ;In this paper, we focus on development of half-duplex dual band radio module for CubeSat, support 144-146MHz and 435-438MHz radio band. The system is designed and implemented from COTS, Commercial Off-The-Shelf, component, which specification follows the mainstream amateur packet radio protocol. With research the specification requirements of communication system, we design the hardware of radio and base band system, including microcontroller, RF modulation chip, low noise amplifier and power amplifier. Then we analyze and calculate the theoretical performance of each subsystem and the whole system, which is for reference of subsequent verification. In the end of paper, we verify the performance of subsystem and the overall transmission performance. Prove that the transceiver system can be achieved at BER of 〖10〗^(-4) with a signal strength 118dBm. In addition, the signal transmitted by the ground station with EIRP of 50dBm is received. The maximum communication distance of UHF and VHF are 6913 km and 19977 km respectively.
Appears in Collections:	[Graduate Institute of opto-Mechatronics] Electronic Thesis & Dissertation

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