Cramer-Rao Bounds and Selection of Bistatic Channels for Multistatic Radar Systems

Greco, Maria; Stinco, Pietro; Gini, Fulvio; Farina, A.

doi:10.1109/taes.2011.6034675

Cited by 77 publications

(62 citation statements)

References 11 publications

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“…[5][6][7][8] show that the higher ranked sets tend to have better visual image quality. For example, combinations containing FM radio, as in sets 1938-1945 in Table 5, result in very-poor resolution and consequently, a poor image quality, as shown in Fig.8d.…”

Section: Simulation and Resultsmentioning

confidence: 99%

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Emitter selection criteria for passive multistatic synthetic aperture radar imaging

Stevens

Jackson²

2014

IET Radar, Sonar & Navigation

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Passive radar provides a means of spectrum sharing in a congested environment. In passive radar, the radar design problem is one of emitter selection, rather than waveform optimisation. This study combines relevant criteria (signal-to-noise ratio, ambiguity function integrated sidelobes, effective multistatic resolution area and contrast ratio) in a multiobjective optimisation to select subsets of available emitters for passive multistatic synthetic aperture radar (SAR). Extensions to wellknown monostatic and bistatic performance criteria are defined for the multistatic SAR case. Assumed limitations in the number of available receiver channels constrain the emitter selection. The proposed emitter selection framework is demonstrated for a simulated scenario of 24 analogue and digital emitters, with a constraint of four receiver channels. Results indicate that the proposed ranking successfully differentiates between emitter sets resulting in good images and those sets resulting in poor images, providing a first step towards formulating a general image quality equation for multistatic SAR.

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Section: Simulation and Resultsmentioning

confidence: 99%

“…Previous work has considered transmitter and receiver placement for optimal bistatic geometry (in terms of moving target detection performance) [6][7][8][9], inverse SAR imaging [10] and optimal waveform design [11]. However, in the passive radar case, the transmitters are out of the radar designer's control.…”

Section: Introductionmentioning

confidence: 99%

Emitter selection criteria for passive multistatic synthetic aperture radar imaging

Stevens

Jackson²

2014

IET Radar, Sonar & Navigation

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Section: Measurement Modelmentioning

confidence: 99%

“…It should be noted that the bistatic CRLB of receiver-to-target range and bistatic bisector velocity [22] can also be employed in this paper. However, this CRLB is computed from the CRLB of time delay and Doppler shift using the derivative chain rule [22], and therefore requires extra computations. Furthermore, the tracking error covariance matrix, which is utilized in the proposed selection algorithm (see section 5), will be the same if computed using the CRLB of time delay and Doppler shift or the CRLB of receiver-totarget range and bistatic velocity.…”

Section: Measurement Modelmentioning

confidence: 99%

Joint transmitter waveform and receiver path optimization for target tracking by multistatic radar system

Nguyen

Doğançay

Davis

2014

2014 IEEE Workshop on Statistical Signal Processing (SSP)

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This paper considers the problem of joint transmitter waveform and receiver path optimization for target tracking by a multistatic radar incorporating one dedicated transmitter and multiple moving receiver platforms. The performance of multistatic radar, in contrast to monostatic radar, depends not only on the transmitted waveform but also on the multistatic geometry. The paper proposes a joint adaptive selection algorithm of the transmitted waveform and the receivers' heading commands to take advantage of both existing waveform-only and path-only optimization techniques. The proposed algorithm is developed to minimize the tracking mean squared error by minimizing the trace of the tracking error covariance matrix. A simulation example is presented to demonstrate the superior performance of the proposed algorithm compared to other existing waveform and heading configurations.

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“…This can be appreciated by realising that the echo arrives at the receiver at the same instant as the direct signal, independent of the target location, and the Doppler shift of a target crossing the bistatic baseline must be zero, because the transmitter-to-target range changes in an equal and opposite way to the target-to-receiver range, independent of the magnitude and direction of the target velocity. In this case, resolution is totally lost and therefore the observation from this transmitter-receiver pair could hardly degrade the resolution of the whole multistatic radar system [Azi07], [Gre10], [Gre11].…”

Section: Optimal Channel Selection In a Multistatic Radar Systemmentioning

confidence: 99%

Waveform Diversity and Design for Interoperating Radar Systems

Greco¹

2013

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY)15 January 2013 (From -To) REPORT TYPE Final Report DATES COVERED SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)EOARD Unit 4515 BOX 14 APO AE 09421 SPONSOR/MONITOR'S ACRONYM(S)AFRL/AFOSR/IOE (EOARD) SPONSOR/MONITOR'S REPORT NUMBER(S) AFRL-AFOSR-UK-TR-2013-0003 DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTESGovernment Purpose Rights -University Di Pisa ABSTRACTFor many years, conventional radars transmitted, received, and processed the same waveform on every pulse or burst within a coherent processing interval (CPI), independently of the environment. Now, modern radar systems have considerable flexibility in their modes of operation, both on receive and transmit. In particular, it is possible to modify the waveform on a pulse to pulse basis, and electronically steered phased arrays can quickly point the radar beam in any feasible direction. In the course of this research project, we introduced the Ambiguity Function, an analytical tool for waveform design and analysis that is useful for examining resolution, sidelobe behavior, and ambiguity in range and Doppler of a given signal waveform. Some techniques to design multiple access frequency hop codes with good auto and cross-ambiguity functions are characterized, focusing on the frequency hop patterns. We have shown that the performance of each channel of the multistatic system heavily depends on the transmitted waveform and on the geometry of the scenario, that is, the position of receivers and transmitters with respect to the position of the target. In particular, both geometry factors and transmitted waveforms play an important role in the shape of the Ambiguity Function and hence in the value of the Cramer-Rao Lower Bound (CRLB). We have calculated the bistatic CRLBs of target range and velocity of each transmit-receive pair as a function of the target kinematic parameters and to provide a local measure of the estimation accuracy of these parameters. Finally, in this work we have analyzed the problem of the optimum sensor selection along the trajectory of a tracked ta...

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Cramer-Rao Bounds and Selection of Bistatic Channels for Multistatic Radar Systems

Cited by 77 publications

References 11 publications

Emitter selection criteria for passive multistatic synthetic aperture radar imaging

Emitter selection criteria for passive multistatic synthetic aperture radar imaging

Joint transmitter waveform and receiver path optimization for target tracking by multistatic radar system

Waveform Diversity and Design for Interoperating Radar Systems

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