Microwave photonic technology has advantages of large bandwidth, high frequency, flexible reconfigurability and immunity to electromagnetic interference, which is widely used for the generation and processing of microwave signals. In this paper, we review our recent works about microwave signal generation and processing based on optical domain controlling, including photonic generation of multi-band and multi-format microwave waveforms, and microwave photonic temperature interrogation based on temperature-to-time mapping. The proposed works have great potential in practical applications, such as radar, measurement as well as sensing.
In order to meet the requirement of high precision and micro-angle measurement on orbit, a self-calibrated optical non-contact real-time monitoring device is designed. Within three meters, the micro-angle variable of target relative to measuring basis can be measured in real-time. The range of angle measurement is ±50′′, the angle measurement accuracy is less than 2′′. The equipment can realize high precision real-time monitoring the micro-angle deformation, which caused by high strength vibration and shock of rock launching, sun radiation and heat conduction on orbit and so on.
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