B = FIR1(N,Wn) designs an N'th order lowpass FIR digital filter
and returns the filter coefficients in length N+1 vector B.
The cut-off frequency Wn must be between 0 < Wn < 1.0, with 1.0
corresponding to half the sample rate. The filter B is real and
has linear phase, i.e., even symmetric coefficients obeying B(k) =
B(N+2-k), k = 1,2,...,N+1.
If Wn is a two-element vector, Wn = , FIR1 returns an
order N bandpass filter with passband W1 < W < W2.
B = FIR1(N,Wn,'high') designs a highpa ....etc

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This paper deals with the methods to find out the margin to restore power system solvability (i.e. how much active and reactive power needs to be reduced so that an unsolvable power system can be brought to a stable operating point). The direction in which we reduce the power is important and is considered in the first method of approaching the closest bifurcation point. In the second method, a minimization technique is adopted to find the active and reactive powers at the buses in the power system if the power system had been operated very clo ....etc

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Abstract
Due to increasing demand for speech communications, efficient techniques in low-rate speech coding are of interest.Here a new compression technique using root cepstral analysis has been proposed. Implementing the proposed method causes the coder to deal with root cepstrum coefficients instead of speech samples. The main idea in using root cepstrum analysis is that some of the trivial coefficients can be ignored to send toward the decoder. Thus considerable reduction in the total bit-rate is achieved. Moreover it has the advanta ....etc

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Multiple-input multiple-output (MIMO) communication techniques make use of multi-element antenna arrays at both the TX and the RX side of a radio page link and have been shown theoretically to drastically improve the capacity over more traditional single-input multiple output (SIMO) systems . SIMO channels in wireless networks can provide diversity gain, array gain, and interference canceling gain among other benets. In addition to these same advantages, MIMO links can offer a multiplexing gain by opening Nmin parallel spatial chann ....etc

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could you give me some website or page link to know the aerodynamic coefficients of some type of Tomahawk missile? The reason for this is i want to build a cruise missile model which need this coefficients. Thanks for you suggestion. ....etc

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Power Factor Correction of Linear and Non-linear Loads Employing a Single Phase Active Power Filter Based on a Full-Bridge Current Source Inverter Controlled Through the Sensor of the AC Mains Current
Abstract:
In the last years the number of non-linear loads has been increasing rapidly. This non-linear load had drawn a current form the AC Mains with harmonic components, leading to low power factor, low efficiency, interference by the EMI, among others. A classic solution is the use of passive filters, which ....etc

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ESTIMATION OF HYDRODYNAMIC COEFFICIENTS OF AN ROV USING FREE DECAY PENDULUM MOTION TEST

SEMINAR REPORT
Submitted by
REJIN CHANDRAN.R
DEPARTMENT OF MECHANICAL ENGINEERING
COLLEGE OF ENGINEERING TRIVANDRUM
August 2010



ABSTRACT


A good dynamics model is essential and critical for the successful design
of navigation and control system of an underwater vehicle. However, it is
difficult to determine the hydro2dynamics forces, especially the added m ....etc

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% FIR Low pass filters using rectangular, triangular and kaiser windows
% sampling rate – 8000
order = 50;
cf=; cf--> contains set of cut-off frequencies

% cutoff frequency – 500
b_rect1=fir1(order,cf(1),boxcar(51)); %Rectangular
b_tri1=fir1(order,cf(1),bartlett(51)); %Triangular
b_kai1=fir1(order,cf(1),kaiser(51,8)); %Kaisar

% cutoff frequency - 1000
b_rect2=fir1(order,cf(2),boxcar(51));
b_tri2=fir1(order,cf(2),bartlett(51));
b_kai2=fir1(order,cf(2) ....etc

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SPEAKER IDENTIFICATION USING MEL FREQUENCY CEPSTRAL COEFFICIENTS


1. INTRODUCTION
Speech is one of the natural forms of
communication. Recent development has made it
possible to use this in the security system. In
speaker identification, the task is to use a speech
sample to select the identity of the person that
produced the speech from among a population of
speakers. In speaker verification, the task is to use a
speech sample to test whether a person ....etc

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Multiple-input multiple-output (MIMO) communication techniques make use of multi-element antenna arrays at both the TX and the RX side of a radio page link and have been shown theoretically to drastically improve the capacity over more traditional single-input multiple output (SIMO) systems . SIMO channels in wireless networks can provide diversity gain, array gain, and interference canceling gain among other benets. In addition to these same advantages, MIMO links can offer a multiplexing gain by opening Nmin parallel spatial chann ....etc

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