Signal in Space Construction

This lecture covers the construction of signals in space for satellite positioning systems, focusing on the navigation data, channel coding, spreading modulation, and the generation of spreading codes using Linear Feedback Shift Registers. It explains the importance of the signal broadcast by satellites, the modulation techniques used, and the robustness of the transmission through free space and the atmosphere. The lecture also delves into the concept of pseudorandom codes, CDMA techniques, and the autocorrelation functions of the codes. Additionally, it discusses the role of channel coding in protecting navigation data, error correction methods, and the use of redundancy to improve data transmission reliability.