Results 1 to 10 of about 148 (84)
Power-Independent Microwave Photonic Instantaneous Frequency Measurement System [PDF]
SensorsThe ability to perform instantaneous frequency measurement (IFM) of unknown microwave signals holds significant importance across various application domains. This paper presents a power-independent microwave photonic IFM system.
Ruiqiong Wang, Yongjun Li
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Reanalysis on Performance of Microwave Phase Detector for Multisignals [PDF]
SensorsMicrowave phase detectors (MPDs) are key components of instantaneous frequency measurement (IFM) receivers and phase interferometer direction finding (PIF-DF) receivers.
Jing Deng, Hongxun Wang, Xin Xiang
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IEEE Photonics Journal, 2022 Photonics-assisted microwave instantaneous frequency measurement (IFM) is considered as a promising technique for detecting an unknown radio-frequency (RF) signal, which has advantages of broad frequency measurement range and fast processing speed. Up to
Xin Wang +4 more
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Photonic instantaneous frequency measurement of wideband microwave signals. [PDF]
PLoS ONE, 2017 We propose a photonic system for instantaneous frequency measurement (IFM) of wideband microwave signals with a tunable measurement range and resolution based on a polarization-maintaining fiber Bragg grating (PM-FBG). Firstly, in order to be insensitive
Yueqin Li +5 more
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IEEE Photonics Journal, 2019 We propose and demonstrate a new reconfigurable instantaneous frequency measurement (IFM) system based on a dual-polarization dual-drive Mach–Zehnder modulator (DPol-DMZM). By simply adjusting the dc biases on both arms of the DPol-DMZM, the upper
Chengwu Yang, Wenqi Yu, Jianguo Liu
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Photonic-Assisted Instantaneous Frequency Measurement System Based on a Scalable Structure
IEEE Photonics Journal, 2019 We propose and demonstrate a new photonic-assisted instantaneous frequency measurement (IFM) system based on a scalable structure. By using multiple scalable modules, the proposed IFM system can achieve both large operating bandwidth and high measurement
Chengwu Yang, Ling Wang, Jianguo Liu
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Instantaneous Frequency Measurement with Reasonable Resolution and Simple Structure
Photonics, 2022 Microwave signals carry important intelligence information in electronic warfare. Hence, the measurement of microwave signals plays a very important role.
Qing-An Ding +9 more
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Performance Analysis Of Mono-bit Digital Instantaneous Frequency Measurement (Difm) Device [PDF]
AUT Journal of Electrical Engineering, 2017 Instantaneous Frequency Measurement (IFM) devices are the essential parts of anyESM, ELINT, and RWR receiver. Analog IFMs have been used for several decades. However, thesedevices are bulky, complex and expensive.
Y. Norouzi, H. Shahbazi, S. Mirzaei
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An Efficient Digital Channelized Receiver for Low SNR and Wideband Chirp Signals Detection
Applied Sciences, 2023 Synthetic aperture radar (SAR) is essential for obtaining intelligence in modern information warfare. Wideband chirp signals with a low signal-to-noise ratio (SNR) are widely used in SAR.
Wenhai Cheng +4 more
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A Novel Fully Integrated 4-Bit IFM Subsystem Using Band-Stop Filters
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2020 In this paper a 2-4 GHz microstrip IFM (Instantaneous Frequency Measurement) subsystem that uses Wilkinson power dividers, frequency discriminators based on band-stop filters and a DC arduino section is reported.
S. R. O de Souza +4 more
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