Time-frequency analysis in waveform engineering can be applied to many detection and imaging systems, such as radar, sonar, ultrasound improve their Signal-to-Noise Ratio (SNR). Recently, photoacoustic systems have attracted researchers’ attention. However, the SNR optimization problem for has not been fully addressed. In this paper, one-dimensional of response an input with finite duration ene...

In this paper, we present our investigations on the use of single objective and multiobjective genetic algorithms based optimisation algorithms to improve the design of OFDM pulses for radar. We discuss these optimization procedures in the scope of a waveform design intended for two different radar processing solutions. Lastly, we show how the encoding solution is suited to permit the optimizat...

Read more and get great! That's what the book enPDFd adaptive high resolution sensor waveform design for tracking will give for every reader to read this book. This is an on-line book provided in this website. Even this book becomes a choice of someone to read, many in the world also loves it so much. As what we talk, when you read more every page of this adaptive high resolution sensor wavefor...

This paper presents a new method to find the optimum switching angles in voltage source multilevel converters in order to minimize specific higher order harmonics and decrease the total harmonic distortion (THD) of their output voltage waveform. The output voltage waveform of inverter can either be in the form of staircase or PWM. In order to increase the degrees of freedom and elimination of m...

The problem of radar waveform design is of fundamental importance in designing state-of-the-art radar systems. The possibility to vary the transmitted signal on a pulse-by-pulse basis opens the door to great enhancement in estimation and detection capability as well as improved robustness to jamming. Furthermore modern radars can detect and track multiple targets simultaneously. Therefore, desi...

This paper presents a low probability of interception (LPI) radar waveform design method with a fixed average power constraint based on information theory. The Kullback–Leibler divergence (KLD) between the intercept signal and background noise is presented as a practical metric to evaluate the performance of the adversary intercept receiver in this paper. Through combining it with the radar per...

IEEE SIGNAL PROCESSING MAGAZINE [10] JANUARY 2009 I magine being able to recognize objects under water while swimming, just like dolphins do, or being able to locate objects while actively homing in, just like bats do. Echolocation in these mammals has evolved over millions of years. Initial returns are processed to locate and identify objects, and then the mammal adapts the time-frequency sign...

CogWave is a free and open-source software platform aiming at developing cognitive radio waveforms. Combining CogWave with USRP gives a rapid prototyping platform for physical layer design and algorithm validation through a realtime video, audio and text transmission. This paper presents the cognitive blind orthogonal frequency division multiplexing (OFDM) waveform implemented in the CogWave so...

This paper deals with the estimation of the median time-to-failure (MTF) due to electromigration in the power and ground busses of CMOS VLSI circuits. In our previous work [3, 4], we presented a novel technique for MTF estimation based on a stochastic current waveform model. In [6], we argued that including the variance waveform of the current, in addition to its expected waveform derived in [3...