5 citations as recorded by crossref.

1. Freely tunable phase-locked dual-frequency microwave signal generation from injection-locked broadband optoelectronic oscillator D. Peng et al. https://doi.org/10.1364/OE.537145
2. Development and Implementation of a Real-Time See-Through-Wall Radar System Based on FPGA . Yunqiang Yang & A. Fathy https://doi.org/10.1109/TGRS.2008.2010251
3. Wide-Range Tunable Coherent Dual-Frequency Microwave Signal Generation With Low Spurious Components in Optoelectronic Oscillator Z. Fu et al. https://doi.org/10.1109/JLT.2024.3410270
4. Phase-locked dual-frequency microwave signal generation in an optoelectronic oscillator based on frequency mixing mutual injection Z. Fu et al. https://doi.org/10.1364/OE.520158
5. Coherent dual-frequency signal generation in an optoelectronic oscillator S. Liu et al. https://doi.org/10.1364/OL.488711