Satellite Bus Systems — Lesson 3

This lesson covers the intricate details of space segment, particularly the bus of the satellite. It delves into the tracking and Use of digital systems for more precise tracking. The lesson explains the challenges faced in tracking, such as ambiguity in the number of full cycles passed. It introduces the concept of spread spectrum technique and the use of digital tones for more precise tracking. The lesson also discusses the concept of range rate, considering the satellite's movement. It further explores the power subsystem of a satellite, discussing solar power and battery power, and how to calculate the number of solar cells required. The lesson concludes with a brief discussion on power bus regulation.

Video Highlights

00:18 - Introduction
01:31 - Use of digital systems for more precise tracking
06:44 - Range rate: satellite radial movement
12:06 - Power subsystem of the satellite
19:27 - Assignment and solution
24:06 - Solar panels and secondary power considerations

Key Takeaways

- Tracking in satellite systems faces challenges such as ambiguity in the number of full cycles passed.
- Spread spectrum technique and digital tones offer a more precise way of tracking.
- The range rate of a satellite considers the satellite's movement.
- The power subsystem of a satellite typically includes solar power and battery power.
- Calculations can determine the number of solar cells required for a satellite.
- Power bus can be regulated or unregulated, each with its own advantages and disadvantages.