Phase Modulated Waveforms for Transponder-Based Radar Sensing: Signal Optimization and Experiments

Wang, Shang; Zhang, Yan; Huston, Andrew; Li, Zhengzheng; Mallo, M.; Fagan, John

doi:10.1109/taes.2011.5937262

Cited by 6 publications

(5 citation statements)

References 27 publications

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“…The waveform bandwidth is selected as 50 MHz just for reducing the computation loads. In Figure 1(b), the modulated ADS-B waveform is a hybrid PPM-random PM waveform [1] sampled at the standard rate 2 MHz.…”

Section: Simplest and Standardmentioning

confidence: 99%

“…Traditionally, the waveforms used for the SR have been either phase-coding (such as LKP3 code, Barker code) or the frequency modulation (chirp, or nonlinear frequency modulation). There are, however, an important class of waveforms which are either random in nature (such as random noise waveform), or randomly modulated for multiple function operations (such as the ADS-B radar signals in [1]). These waveforms have the advantages of low-probability-of-intercept (LPI).…”

Section: Introductionmentioning

confidence: 99%

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Super-resolution processing for multi-functional LPI waveforms

Zhang

Wang

et al. 2014

SPIE Proceedings

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Section: Simplest and Standardmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Super-resolution processing for multi-functional LPI waveforms

Zhang

Wang

et al. 2014

SPIE Proceedings

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“…Since the emergence of ADS-B concept, some researchers have considered the utilization of existing and installed infrastructure of the surveillance radar to combine with the satellite-based ADS-B system within the perspective of ATC. More interestingly, the use of the ADS-B signal itself to detect noncooperative targets from the ADS-B message and from the radar processing, as an onboard collision avoidance system, was first described in a patent disclosure [11], and the concept subsequently developed further [12][13][14][15]. The novelty of the ADS-B radar system lies in that the system insightfully exploits the ADS-B out signal, which is primarily designed for communication purposes, as a radar signal to perform multiple target estimation and tracking, thereby creating a multifunctional waveform.…”

Section: Introductionmentioning

confidence: 99%

Tracking of Noncooperative Airborne Targets Using ADS-B Signal and Radar Sensing

Huang

Narayanan

Zhang

et al. 2013

International Journal of Aerospace Engineering

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As the Automatic Dependent Surveillance-Broadcast (ADS-B) system has gained wide acceptance, additional exploitations of the radioed satellite-based information are topics of current interest. One such opportunity includes the augmentation of the communication ADS-B signal with a random biphase modulation for concurrent use as a radar signal. This paper addresses the formulation and analysis of a suitable noncooperative multitarget tracking method for the ADS-B radar system using radar ranging techniques and particle filter algorithms. In addition, the low-update-rate measurement due to the ADS-B system specification is discussed in order to provide acceptable estimation results. Simulation results show satisfactory tracking capability up to several kilometers with acceptable accuracy.

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“…Excitation signal optimization is extremely important in closed-loop identification of power system based on ambient signals. As one of the most important collective behaviors, excitation signal optimization has been a topic of research in signal processing and mathematics for quite some time [1,2,3,4] . During the past decades, there are some results about excitation signal design using various methods.…”

Section: Introductionmentioning

confidence: 99%

“…W q θ denotes a feedback channel controller,θ is the model parameter to be identified. q denotes a forward shift operator satisfying ( ) ( 1) qu t u t = + , 1, 2, t = . According to Fig.…”

mentioning

confidence: 99%

A New Optimized Method of Excitation Signal for Closed-Loop Identification of Power System Based on Ambient Signals

Miao

Lü

2012

AMM

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Excitation signal optimization is an important part in the power system identification based on ambient signals. An adaptive discrete Kalman filter method is proposed to select an optimal signal for closed-loop identification in this paper. This method is carried out through the use of the measurement innovation sequence as piecewise stationary process inside an estimation window. It also overcomes the shortcomings of relying on the correctness of the mathematical and statistical models excessively. The feature of random load changing in power system is fully considered in this method. Then under the energy constraints of input and output signals, this method can be used to solve the excitation signal which satisfies the performance of power system and the noise covariance estimation matrices are acquired. By using this method, the optimal identification model can be obtained. Simulation results show the effective performance of the proposed method. Compared with other methods, the quality of the closed-loop identification model based on ambient signals is improved by using the excitation signal optimal method proposed in this paper.

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Phase Modulated Waveforms for Transponder-Based Radar Sensing: Signal Optimization and Experiments

Cited by 6 publications

References 27 publications

Super-resolution processing for multi-functional LPI waveforms

Super-resolution processing for multi-functional LPI waveforms

Tracking of Noncooperative Airborne Targets Using ADS-B Signal and Radar Sensing

A New Optimized Method of Excitation Signal for Closed-Loop Identification of Power System Based on Ambient Signals

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