Abstract: A time interval measurement code-division multiple access (CDMA) transceiver including a clock manager, a transmit channel, one or more receive channels, and a processor for performing time interval measurement in two-way satellite time and frequency transfer and satellite ranging, is provided. The transmit channel generates a spread signal that is digitally phase modulated to generate and transmit the modulated intermediate frequency signal. The baseband processing of the received signal from each of the remote ground stations is performed in receive channels. A transmission time generation module generates a transmission time measurement and a reception time generation module generates a reception time measurement. The transmission time measurement and the reception time measurement are generated on a latch measurement signal that is received from a latch epoch generation module in each of the receive channels.

Abstract: A time interval measurement code-division multiple access (CDMA) transceiver including a clock manager, a transmit channel, one or more receive channels, and a processor for performing time interval measurement in two-way satellite time and frequency transfer and satellite ranging, is provided. The transmit channel generates a spread signal that is digitally phase modulated to generate and transmit the modulated intermediate frequency signal. The baseband processing of the received signal from each of the remote ground stations is performed in receive channels. A transmission time generation module generates a transmission time measurement and a reception time generation module generates a reception time measurement. The transmission time measurement and the reception time measurement are generated on a latch measurement signal that is received from a latch epoch generation module in each of the receive channels.