The most common GPS receivers have the following two
09.19.2010
| bsp; 3) timing-type receiver The main advantage of these GPS satellite receiver, high-precision time standards for timing, commonly used in the Observatory and radio communications in the time synchronization. 2, according to the receiver's carrier frequency classification 1) Single frequency receiver L1 single-frequency receiver can only receive the carrier signal, measured values of carrier phase positioning. Can not effectively eliminate the impact of ionospheric delay, single-frequency receiver is only applicable to short baseline (<15KM> precision positioning. 2) dual-frequency receiver Dual-frequency receiver can receive both L1, L2 carrier signal. Frequency of using different ionospheric delay can eliminate the ionospheric delay on the impact of electromagnetic signals, it can be used for dual-band receiver for precise positioning of thousands of kilometers long. 3, classified according to the number of receiver channels GPS receiver can receive both GPS satellite signals more satellites to separate the received signals from different satellites to achieve the tracking of satellite signals, processing and measurement functions with a device such as antenna signal channel. According to the receiver by a channel can be divided into categories: 1) Multi-channel receiver |
actualización de datos: 10.12.2011