Waveform Synthesis for Diversity-Based Transmit Beampattern Design

Stoica, Petre; Li, Jian; Zhu, Xiaojun; Guo, Bin

doi:10.1109/ssp.2007.4301303

Cited by 69 publications

(131 citation statements)

References 10 publications

Supporting

Mentioning

131

Contrasting

Order By: Relevance

“…Also, our proposed methods can transmit power to more than one interested area of space unlike the method in [25]. After designing the covariance matrix, practical signal waveforms whose covariance matrix is close to the designed covariance matrix are produced under some practical constraints [21,22]. Simulation results show the efficiency of our proposed methods.…”

Section: Introductionmentioning

confidence: 92%

“…The process of waveform design can be divided into two stages; a) designing the transmit waveform covariance matrix of transmit waveforms [14][15][16][17][18][19], b) synthesizing the transmit waveforms in order to realize the designed covariance matrix of stage one [20][21][22]. Several algorithms are proposed in literature to design transmit waveform with different constraints such as low peak to average power ratio (PAPR), because this helps in linear behavior of amplifiers in radio frequencies [23].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Simple and Fast Method to Generate Transmit Beampattern in MIMO Radar

Bolhasani¹,

Imani²,

Ghorashi³

2015

International Journal of Innovative Research in Electrical, Ele

View full text Add to dashboard Cite

Abstract:In this paper, we consider the problem of transmit beampattern design in multiple-input multiple-output (MIMO) radar systems. MIMO systems have the potential to dramatically improve the performance of radar systems over single antenna systems and phased array radar systems. The aim of waveform design problem is to achieve a desired beampattern or concentrating the transmit power in certain directions by designing the transmit covariance matrix. In this paper we first proposed a smiple and fast method which concentrates transmit power in interested area uniformly. This method satisfy peak to average power ratio (PAPR) practical constraint of transmit power and its PAPR is equal to one. Then we proposed an other method based on first method to decrease side lobe level (SLL) of our transmit beampattern and to achieve this goal, we employ chebyshev window in our method. However, the second method decrease SLL of the transmit beampattern, but its PAPR is not equal to one and has a low-PAPR. Simulation results validate our claims.Keywords: multiple-input multiple-output (MIMO) radar, transmit beampattern design, minimum side lobe beampattern design, chebyshev window, covariance matrix design.

show abstract

Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

A Simple and Fast Method to Generate Transmit Beampattern in MIMO Radar

Bolhasani¹,

Imani²,

Ghorashi³

2015

International Journal of Innovative Research in Electrical, Ele

View full text Add to dashboard Cite

show abstract

“…It is noted that we only obtain the WCM other than the ultimate transmitted waveforms in this article. In practice, the ultimate waveforms can be asymptotically synthesized by using the method in [39].…”

Section: B Joint Optimization With the Spectral Norm Constraintmentioning

confidence: 99%

Joint optimization of MIMO radar waveform and biased estimator with prior information in the presence of clutter

Wang

Liao

Liu

et al. 2011

EURASIP J. Adv. Signal Process.

View full text Add to dashboard Cite

In this article, we consider the problem of joint optimization of multi-input multi-output (MIMO) radar waveform and biased estimator with prior information on targets of interest in the presence of signal-dependent noise. A novel constrained biased Cramer-Rao bound (CRB) based method is proposed to optimize the waveform covariance matrix (WCM) and biased estimator such that the performance of parameter estimation can be improved. Under a simplifying assumption, the resultant nonlinear optimization problem is solved resorting to a convex relaxation that belongs to the semidefinite programming (SDP) class. An optimal solution of the initial problem is then constructed through a suitable approximation to an optimal solution of the relaxed one (in a least squares (LS) sense). Numerical results show that the performance of parameter estimation can be improved considerably by the proposed method compared to uncorrelated waveforms.

show abstract

“…Once the covariance matrix is synthesized, the corresponding waveforms fulfilling some practical constraints such as close to unity peak-to-average power ratio (PAPR) are designed. To design such waveforms an algorithm is proposed in [16]. This algorithm is also iterative in nature with a very high computational complexity.…”

Section: Introductionmentioning

confidence: 99%

Closed-form solution to directly design face waveforms for beampatterns using planar array

Bouchoucha

Ahmed

Al-Naffouri

et al. 2015

2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

View full text Add to dashboard Cite

Abstract-In multiple-input multiple-output radar systems, it is usually desirable to steer transmitted power in the regionof-interest. To do this, conventional methods optimize the waveform covariance matrix, R, for the desired beampattern, which is then used to generate actual transmitted waveforms. Both steps require constrained optimization, therefore, use iterative algorithms. The main challenges encountered in the existing approaches are the computational complexity and the design of waveforms to use in practice. In this paper, we provide a closed-form solution to design covariance matrix for the given beampattern using the planar array, which is then used to derive a novel closed-form algorithm to directly design the finitealphabet constant-envelope (FACE) waveforms. The proposed algorithm exploits the two-dimensional fast-Fourier-transform. The performance of our proposed algorithm is compared with existing methods that are based on semi-definite quadratic programming with the advantage of a considerably reduced complexity.Index Terms-Multiple-input multiple-output radars, beampattern design, closed-form solution, waveform design, twodimensional fast-Fourier-transform.

show abstract

Waveform Synthesis for Diversity-Based Transmit Beampattern Design

Cited by 69 publications

References 10 publications

A Simple and Fast Method to Generate Transmit Beampattern in MIMO Radar

A Simple and Fast Method to Generate Transmit Beampattern in MIMO Radar

Joint optimization of MIMO radar waveform and biased estimator with prior information in the presence of clutter

Closed-form solution to directly design face waveforms for beampatterns using planar array

Contact Info

Product

Resources

About