Extracting phase noise of microwave and millimetre-wave signals by deconvolution

Wang, W.Q.; Jiaxing, Cai; Yang, Yi

doi:10.1049/ip-smt:20050013

Cited by 16 publications

(2 citation statements)

References 2 publications

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“…Experimental results show that the best phase detector is double-balanced mixer [9]. Measurements reveal the phase noise in double-balanced mixer is approximated by [10] …”

Section: Prediction Of Phase Noise In Near-space Passive Bistaticmentioning

confidence: 98%

Phase Synchronization Errors on Near-Space Passive Bistatic Radar Imaging

Wang

Peng

Cai

2009

2009 IEEE Circuits and Systems International Conference on Testing and Diagnosis

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Near-space passive bistatic radar involves a passive receiver placed inside a near-space platform is in conjunction with one opportunistic illuminator. This spatial configuration has many operational advantages such as improved capability, reliability, and flexibility. However, high-precision phase synchronization must be ensured. So accurate simulation of phase synchronization errors is of great importance during designing and developing of near-space passive bistatic radar systems. This paper concentrates on the prediction of phase synchronization errors due to limited oscillator frequency stability between opportunistic illuminator and passive receiver. With statistical models of phase noise, an analytical expression of phase synchronization errors is derived and some simulations are performed. Moreover, the impact of phase synchronization errors on bistatic radar imaging performance is investigated. Simulation results show that phase synchronization errors may degrade the imaging performance greatly and some synchronization compensation techniques should be developed. Hence, some possible solutions are investigated.

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“…Experimental results show that the best phase detector is double-balanced mixer [9]. Measurements reveal the phase noise in double-balanced mixer is approximated by [10] …”

Section: Prediction Of Phase Noise In Near-space Passive Bistaticmentioning

confidence: 98%

Phase Synchronization Errors on Near-Space Passive Bistatic Radar Imaging

Wang

Peng

Cai

2009

2009 IEEE Circuits and Systems International Conference on Testing and Diagnosis

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“…Consequently, oscillator phase noise deserves special attention in bistatic radar systems, since there is no cancellation of low frequency phase errors as in a monostatic radar where the same oscillator signal is used for modulation and demodulation. Notice that phase noise is the term most widely used to describe the characteristic of frequency instability, which is a measure of the instantaneous time shifts, or time jitters, that are inherent in signals produced by signal generators or added to signals as they pass though a system [41]. The requirements of phase stability for bistatic radar are discussed in [42].…”

Section: Synchronizationmentioning

confidence: 99%

Application of Near-Space Passive Radar for Homeland Security

Wang

2007

Sens Imaging

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To protect the homeland from terrorist attacks employing explosive devices, revolutionary advances across a wide range of technologies are required. Inspired by recent advances in near-space (defined as the region between 20 km and 100 km), this paper proposes a new passive radar system using opportunistic transmitter as an illuminator and near-space platform as a receiver. This concept differs substantially from current radars. This system can be operated as a passive bistatic or multistatic radar and hence largely immune to jamming. By placing the receiver in near-space platforms, many functions that are currently performed with satellites or airplanes could be performed much more cheaply and with much greater operational utility. These advantages make near-space passive attractive for a variety of applications, many of which fit well with the needs of homeland security. This paper details the role of near-space passive radar as sensor system that can support homeland security applications. The strengths and weakness of near-space passive radar, compared to current spaceborne and airborne radars, are detailed. The signal models and processing algorithms for near-space passive radar are provided. It is shown that the use of cost effective near-space platforms can provide the solutions that were previously thought to be out of reach to remote sensing and government customers.

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Analysis of Waveform Errors in Millimeter-Wave LFMCW Synthetic Aperture Radar

Wang

2007

Int J Infrared Milli Waves

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Extracting phase noise of microwave and millimetre-wave signals by deconvolution

Cited by 16 publications

References 2 publications

Phase Synchronization Errors on Near-Space Passive Bistatic Radar Imaging

Phase Synchronization Errors on Near-Space Passive Bistatic Radar Imaging

Application of Near-Space Passive Radar for Homeland Security

Analysis of Waveform Errors in Millimeter-Wave LFMCW Synthetic Aperture Radar

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