BeiDou helps weapons industry to complete the construction of time and frequency benchmarks
BeiDou helps weapons industry to complete the construction of time and frequency benchmarks
Recently, the procurement project of low phase noise and ultra-high stability time and frequency reference between Beidou Bontec and the No.203 Research Institute of China's Armaments Industry has passed the calibration of the Second Measurement and Testing Research Center of National Defense Science and Technology Industry, and the certificate of authorization No.: National Defense Military Industry-JLJG-1-002.
Detailed description
T460 GPS time and frequency standard preferably low phase noise, low frequency drift of the dual constant temperature sink high stability crystal DOCXO and high-precision professional timing GPS receiver, using low phase noise phase-locking technology and large-scale integrated circuit design, advanced GPS frequency measurement and control technology on the crystal oscillator output frequency signal for precision measurement and accurate adjustment, the output frequency signal locked to the GPS system. . Accuracy better than 1E-12, without calibration can continue to provide high-precision frequency signal output. It has the long-term stability characteristics of rubidium atomic clock, and at the same time, it also has very good short-term stability and ultra-low phase noise.
The 1PPS pulse information output by T460 GPS time and frequency standard is the 1PPS signal generated after 10,000,000 frequency divisions of the 10MHz signal output from the GPS tamed thermostat crystal. The T460 GPS time and frequency standard adopts intelligent learning algorithm to solve the effect of short time random jump of GPS pulse original second pulse.
Continuously learns the drift characteristics of the crystal and stores the drift data, and the system can automatically switch to the hold mode when the GPS satellite signal is unavailable with an abnormal signal. Continuously provide highly reliable time and frequency signal output using intelligent algorithms. It can be widely used in high-speed communication, measurement and calibration, radar, digital broadcasting, national defense, astronomical observation and other fields.