Dual-band dechirping LFMCW radar receiver with high image rejection using microwave photonic I/Q mixer
نویسندگان
چکیده
منابع مشابه
Duplexer using microwave photonic band gap structure
We propose a frequency selective duplexer using microwave photonic band gap ~PBG! structures. It uses two different PBGs to control the propagation of electromagnetic waves in the microwave region. In this structure, an additional narrow reflection band appears in the transmission spectrum when the PBG structure is not properly located relative to the T junction. By considering multiple reflect...
متن کاملA 5.25ghz Monolithic Image-rejection Mixer
This paper describes the implementation of the image rejection mixer block in the 5GHz frequency band using 0.18μm CMOS technology. The image rejection mixer block adopts the double-quadrature topology for high image-rejection ratio in the high frequency applications and is designed for the dual-conversion receiver. The loss of the polyphase filter in the signal path can be reduced with simple ...
متن کاملDual-band Radar Interferometry
This paper demonstrates the feasibility of using differential interferometric synthetic aperture radar (DInSAR) for subsidence monitoring over the underground mining sites in New South Wales, Australia. The SAR data acquired in dual-frequency, Cand L-band, of microwave portion of electromagnetic spectrum by ERS-1/2, Radarsat-1 and JERS-1 satellites have been examined. The issues of decorrelatio...
متن کاملFractal Bandpass Filter Using Y-shaped Dual-Mode Resonator for C-Band Receiver (Research Note)
In this study, a fractal, Y-shaped dual-mode resonator bandpass filter (BPF) with input-output cross-coupling is introduced. A parallel-coupling feed structure with a cross coupling has been used to generate two transmission zeroes (TZs) near the lower and upper cutoff frequency that can effectively improve the passband edge selectivity. Also, a fractal shaped based on conventional diamond and ...
متن کاملClassification of Personnel Targets with Baggage Using Dual-band Radar
In this paper, we aim to identify passengers with different baggage by analyzing the micro-Doppler radar signatures corresponding to different kinds of gaits, which is helpful to improve the efficiency of security check in airports. After performing time-frequency analysis on the X-band and K-band radar data, three kinds of micro-Doppler features, i.e., the period, the Doppler offset, and the b...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2017
ISSN: 1094-4087
DOI: 10.1364/oe.25.022055