Читать книгу Position, Navigation, and Timing Technologies in the 21st Century - Группа авторов - Страница 81

This section details the architecture of a cellular CDMA navigation receiver, which consists of three main stages: signal acquisition, tracking, and message decoding [18]. The receiver utilizes the pilot signal to detect the presence of a CDMA signal and then tracks it. Section 38.5.2.1 describes the correlation process in the receiver. Sections 38.5.2.2 and 38.5.2.3 discuss the acquisition and tracking stages, respectively. Section 38.5.2.4 details decoding the sync and paging channel messages.