6 papers
Two-step high-accuracy microwave frequency measurement and time-frequency analysis based on optical frequency combs
Wentao Ma, Taixia Shi, Chi Jiang +1
Broadband microwave frequency measurement and time-frequency analysis are crucial for applications such as electronic warfare. However, when it comes to ultra wideband signal analy…
Broadband microwave time-frequency analysis via stabilized period-one oscillation and recirculating frequency shifting with shared fiber loop
Xianxin Zhang, Chi Jiang, Taixia Shi +1
To address the need for time-frequency analysis (TFA) of broadband microwave signals and to overcome the reliance of existing schemes on large-bandwidth swept microwave sources, we…
Dynamic Dispersion Accumulation in Fiber Loops for Realizing Record-High Frequency Resolution or Ultra-Low Signal Sampling Rate in Dispersion-Based Photonics-Assisted Wideband Microwave Measurement Systems
Chi Jiang, Taixia Shi, Hang Yang +4
Dispersion-based photonics-assisted microwave measurement systems provide immense potential for real-time analysis of wideband and dynamic signals. However, they face two critical…
Advanced microwave photonic waveform editing: enabling the evolution of radar systems into joint radar and spectrum sensing systems
Chi Jiang, Taixia Shi, Dingding Liang +3
In response to the urgent demand for the development of future radar application platforms from single radar functionality towards integrated multi-functional systems, we show an a…
Microwave photonic frequency measurement and time-frequency analysis: Unlocking bandwidths over hundreds of GHz with a 10-nanosecond temporal resolution
Taixia Shi, Chi Jiang, Chulun Lin +4
Fast and broadband spectrum sensing is an essential component in cognitive radio systems, intelligent transportation systems, electronic warfare systems, etc. However, traditional…
A microwave photonic prototype for concurrent radar detection and spectrum sensing over an 8 to 40 GHz bandwidth
Taixia Shi, Dingding Liang, Lu Wang +11
In this work, a microwave photonic prototype for concurrent radar detection and spectrum sensing is proposed, designed, built, and investigated. A direct digital synthesizer and an…