An inspection of signal processing approach in order to estimate underwater network cardinalities is conducted in this research. A matter of key prominence for underwater network is its cardinality estimation as the number of active cardinalities varies several times due to numerous natural and artificial reasons due to harsh underwater circumstances. So, a proper estimation technique is mandat...

The long-term goal of this research is to develop optimal array signal processing techniques for passive source localization in littoral shallow-water environments. It has long been known that multi-modal dispersion in a shallow water waveguide degrades the performance of bearing estimates by conventional plane-wave beamforming. This is due to spurious effects unique to the waveguide environmen...

A new generation of radio telescopes is achieving unprecedented levels of sensitivity and resolution, as well as increased agility and field-of-view, by employing highperformance digital signal processing hardware to phase and correlate large numbers of antennas. The computational demands of these imaging systems scale in proportion to BMN2, where B is the signal bandwidth, M is the number of i...

In high-level synthesis for digital signal processing systems of array structured architecture, one of the most important procedures is the scheduling. By taking into account the allocation of operations to processors, it is mandatory to take into account the communication time between processors. In this paper we propose a scheduling method which derives an optimal schedule achieving the minim...

We present a novel approach for the detection, discrimination, and identification of superimposed neuronal action potentials from multineuronal, multichannel extracellular nerve recordings with low signal-to-noise ratios. The approach uses phased-array processing techniques to identify the spikes from different neurons on the basis of their unique propagation velocities. We evaluated this new a...

Digital finite impulse response (FIR) filters play a very important role in digital signal processing (DSP) applications ranging from image and video processing to wireless communication. Digital FIR filter is primarily composed of multipliers, adders and delay elements. Several techniques have been reported in the open literature to implement digital FIR filters using Field Programmable Gate A...

We address the lens optimization and signal processing for array-based multiple-input multiple-output (MIMO) visible light communication, especially under link misalignment. employ one concave convex to separate lights from different light-emitting diodes (LEDs), optimize structure minimize condition number of channel gain matrix. In this way, emitted by LEDs can be separated well each other. T...

Abstract Original techniques are proposed for the improvement of surface current mapping with phased-array oceanographic high-frequency radars. The first idea, which works only in bistatic configuration, is to take advantage a remote transmitter perform an automatic correction receiving antennas based on signal received direct path, adjustment that designated as “self-calibration.” second appli...