CAJ | 학술논문

设计和开发了卫星通信用单路增益可调中频单元.阐述了系统设计需求和整体结构,详细介绍了程序控制衰减模块、6 dB增益放大器、工作状态监测电路和逻辑控制电路等主要硬件组成部分的工作原理和实现方法.该设计解决了现有中频单元工作模式影响通信业务质量的问题,降低了内部干扰的风险,提高了任务保障能力.测试结果表明符合设计要求.
설계화개발료위성통신용단로증익가조중빈단원.천술료계통설계수구화정체결구,상세개소료정서공제쇠감모괴、6 dB증익방대기、공작상태감측전로화라집공제전로등주요경건조성부분적공작원리화실현방법.해설계해결료현유중빈단원공작모식영향통신업무질량적문제,강저료내부간우적풍험,제고료임무보장능력.측시결과표명부합설계요구.
An intermediate frequency(IF)unit of single-channel adjustable attenuation applied to satellite communication was designed and developed. The design requirements and integral structure of the system are described,and the working principle and realization method of the main hardware components(program controlled attenuation module,6 dB gain amplifier, working condition monitoring circuit and logic control circuit) are introduced in detail. This design solved the problem that the working mode of current IF unit influences on the communication service quality,reduced the risk of internal interference,and improved the guarantee capability of the task. The test results indicate that the system is comply with the design requirements.