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所在平台: Udemy |
课程主页: https://www.udemy.com/course/satellite-subsystem-and-link-design/
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## 卫星子系统与链路设计课程总结 本课程深入介绍了卫星设计过程中至关重要的两个方面：**卫星子系统**和**卫星链路设计**。 **在卫星子系统部分**，课程详细剖析了卫星的核心组成部分，包括： * **姿态与轨道控制系统 (AOCS)**：负责维持卫星在预定轨道并精确控制其姿态。 * **遥测、跟踪与指令 (TT&C) 子系统**：实现了地面站与卫星之间的通信，包括发送指令（如选择转发器、功放、电源、信道及频率重用）和接收遥测数据。 * **电源系统**：为卫星所有子系统提供可靠的电力供应。 * **通信子系统**：负责卫星与地面之间的数据传输。 * **卫星天线设备**：重点介绍了天线在传输和接收中的作用，以及如何与环行器协同工作，并强调了天线在TT&C中的应用。 课程还阐述了卫星上的各种传感器如何监测卫星健康状况，为诊断和通信提供必要信息。 **在卫星链路设计部分**，课程涵盖了以下关键内容： * **基础传输理论**：为理解通信链路奠定基础。 * **系统噪声温度**：详细讲解了前端系统的噪声特性。 * **增益/噪声温度比 (G/T)**：深入研究了这一衡量接收系统性能的关键参数。 * **基本链路的形成与分析**：探讨了系统的基本链路结构及其受干扰的影响。 * **载波对噪声功率比 (C/N)**：详细讲解了在有无频率重用情况下，为满足特定C/N需求而进行卫星链路设计的具体方法。 * **卫星链路预算**：提供了针对不同应用场景的详细链路预算解释。 * **不同条件与环境因素下的链路设计**：强调了在设计中需要考虑的各种实际操作条件和环境影响。 总而言之，本课程为学员提供了关于卫星系统整体设计，从关键子系统的功能实现到通信链路的有效规划和优化的全面知识。
In this course study of Satellite Sub-Systems components such as Attitude and Orbit Control system, Telemetry tracking and command subsystem, Attitude Control subsystem, Power systems, Communication subsystems, Satellite Antenna Equipment. The subsystem components play an important role at ground as well as in satellite stations. In telemetry tracking and command system understand the pulse sending and receiving command generated allotted to the satellite for selection of transponder, power amplifier, power supply and channel selection with or without frequency reuse. In satellite antenna equipment, understand the use of antenna with Circulator for transmission and reception purpose. Antenna use for telemetry tracking command for the satellite. Satellite health observed by the various sensor present on satellite will provide the information for diagnosing and communication purpose.In Satellite Link design study basic transmission theory. Understand the concept of system noise temperature at front end. Concept of gain to temperature ratio studied in detail. Formation of basic link and its analysis with respect to the interference in the system. Clear concept of the design of satellite links for a specified carrier to noise ratio with and without frequency reuse. In detail explanation of satellite link budget for various applications. Link design for various condition and environmental factors to be consider.
