Abstract We study the signal of cosmic string wakes present before time reionization in cross-correlation 21-cm redshift and B-mode CMB polarization maps. The specific non-Gaussian strings position space maps can be extracted by means a matched filtering analysis. Signals with tension somewhat lower than those corresponding to current upper bound identified when embedded background Gaussian flu...

The waveform templates of the matched filtering-based gravitational-wave search ought to cover wide range parameters for prosperous detection. Numerical relativity (NR) has been widely accepted as most accurate method modeling waveforms. Still, it is well-known that NR typically requires a tremendous amount computational costs. In this paper, we demonstrate proof-of-concept novel deterministic ...

Abstract Patients with diabetes are more likely to have eye problems such as cataracts and glaucoma, but the diseases will affect on the retina is the main problem to vision. Diabetic retinopathy is one of the major causes of human abnormalities or even blindness. Early detection of such an abnormality can provide proper treatment and most of the visual loss can be prevented. The algorithm is t...

esteghlal fireclay mine, northern abadeh, with dominant composition of kaolinite and pyrophyllite, and annual production of over a million tons, is one of the largest sedimentary deposits in iran. linear spectral unmixing (lsu) and mixture tuned matched filtering (mtmf) processes were applied on the vnir + swir dataset of aster for identifying the frequency fraction and distribution of clay min...

This paper presents efficient methods for automatic detection and extraction of blood vessels and optic disc (OD) both of which are two prominent anatomical structures in ocular fundus images. The blood vessel extraction algorithm is composed of four steps, i.e., matched filtering, local entropy-based thresholding, length filtering, and vascular intersection detection. The OD identification inv...

SHORT ABSTRACT: Ship wakes are often used as the primary means to detect ships in SAR images since they can extend for kilometers. On radar images, they often take the appearance of bright and/or dark lines hidden in the sea clutter. For this reason, robust and efficient line detection algorithms are needed. Our first results tend to support the classical method relying on the Radon Transform a...

This paper proposes an efficient array beam-forming method using spatial matched filtering (SMF) for ultrasonic imaging. In the proposed method, ultrasonic waves are transmitted from an array subaperture with fixed transmit focus as in conventional array imaging. At receive, radio frequency echo signals from each receive channel are passed through a spatial matched filter that is constructed ba...

The BSD/OS IPFW packet filtering system is a well engineered, flexible kernel framework for filtering (accepting, rejecting, logging, or modifying) IP packets. IPFW uses the well understood, widely available Berkeley Packet Filter (BPF) system as the basis of its packet matching abilities, and extends BPF in several straightforward areas. Since the first implementation of IPFW, the system has b...

Three traditional ASR parameterizations matched with Hidden Markov Models (HMMs) are compared to humans for speaker-dependent consonant recognition using nonsense syllables degraded by highpass filtering, lowpass filtering, or additive noise. Confusion matrices were determined by recognizing the syllables using different ASR front ends, including Mel-Filter Bank (MFB) energies, Mel-Filtered Cep...

In this paper, acquisition performance with adaptive pre-filtering is analyzed for a "coherent Paralperformance in a mobile fading channel. Under severe multiDath fading conditions. the P N code acauisition is difficult Y le1 matched-filter (MF) acquisition scheme with a reference filter (RF) in a multipath fading channel. Adaptive prefilterina is emoloved to reduce the effect of severe multipa...