Search Engine www.edaboard.com

17 Threads found on edaboard.com: Sin Waves

## Help me in FIR Verilog code

hello i am doing a verilog project that design a FIR filter. i generate sin & cos waves with cordic algorithm and apply it to FIR fiter. i am not sure about response. this is the code of fir filter: module FIR_filter(input signed x, input clk, output reg signed yn); reg signed xn; wire

## difference between four and two quadrant multiplier

126013 I can see that Complete modulation is not achieved using a 2-Q multiplier. I can see for the negative cycle of the message signal the carrier is being clipped off... For the multiplier eqn = x *y/z... I can understand that during the negative cycle the 'y' the pmos gets turned off resulting in x * 0/ causing output to

## sin wave multiplication using IP Cores -

I am trying to multiply 2 sine waves and then transfer the result to a DAC converter. The screenshot below shows the schematic. The divider is built using the clocking wizard core to get the 100Mhz system clock down to 50Mhz. Next comes the sine wave generators which were built usind the DDS Compiler (...)

## Accurate phase measurement with relativly low sampling frequency

Hello. To give some more information on what I am to use this for: I have two signals. Both are periodic sine waves with the same frequency, but with a constant phase difference. Let's call one of the signals for ref (reference) and the other sig (signal). They can look like this: ref(t) = sin(2*pi*f*t) sig(t) = (...)

## Can anyone explain me how the balanced modulator works?

A true multiplication of two sine waves produces the sum and difference frequencies. Neither original frequency is present. sin(A).sin(B) = 0.5 cos(A-B) - 0.5 cos(A+B) A ring modulator is an approximation to that, with harmonics. Keith

## Problems with Generating a Complex Exponential Wave

Hi, I'm trying to generate waves of the form, p = a*cos(theta)*exp(i*w*t), where t is the time, w is the frequency and theta is just an angle. In my VI (attached), I used exp(i*w*t) = cos(w*t)+i*sin(w*t) and formed this using the Re/Im to Complex Function. And I used four different values of theta. However, when I output the values (...)

## When to use hysteresis comparator? Is it compulsory?

I doubt at what condition should I use hysteresis comparator. Is hsysteresis compulsory? Now I use comparator to convert two anti-phase sin. waves from sensor readout circuits to a square-wave. The sin. waves are with about 100-150mV peak-to-peak voltage and 8kHz frequency. If I use a comparator with 10mV hysteresis (...)

## view the OFDM signal in simulink model

I created a simple ofdm transmitter in simulink. I will like to know, after the IFFT stage and adding the CP, what should I do if I want to view the OFDM signal??? after IFFT, is it possible to view sin waves of the different frequency carriers? Please can anybody help???

## Modeling oscillating electric dipole and quadrupole in FDTD

I think a dipole could be just represented as a point current and then in one FDTD grid set a hard source as Ex(i,j,k) = dt*sin(omega*t)/eps0 That is more or less the standard method to implement dipoles. For a quadrupole I would use four cells E(i+0/1,j+0/1,k) and insert identical sine waves with opposite signs at two c

## Max038 Function Generator Simulation?

Hello Everybody! I m in trouble, can someone help me? I want to use Max038 Function generator IC to generate sin, Triangular and square waves. Before designing I want to simulate it, but multisim and Proteus does not have this IC. Can any body tell me which software support Max038 Simulation or any dedicated software fot its simulat

## RMS of sin, square, triangular and other waves

How we can measure RMS of sin, square, triangular and other waves. I need to know the formula for different waves.

## how to reduce total hormonic distortion in sin waves?

LvW, I agree with venkataganeshj. I would add one more comment to his answer #: If you use a bandpass filter with the center frequency equal to the sine wave frequency, then the output of the filter will not be phase shifted with respect to the input. However, the complexity of the filter will be greater for the same amount of harmonic attenua

## WAVEFORM GENERATION using PWM technique

i wud b glad if anyboby cud help me in providin a solution 2 dis querry of mine.. m using ATmega 8L for making a function generator..dere m usin PWM technique for generatin sin(4m luk up table),square and a ramp wave..i hv managed to develop all d 3,bt m facing problem in generatin waves of amplitude and frequency as per (...)

## Help on Sound pressure Levels of sine waves

Hi, I am doing experience on measuring the SPL of sine waves generated from computer by a simple Sound Level meter using the A weighting parameter , The expression of the resulting signal is 1*sin(2*pi*f*t) and f varying from 125 Hz to 8 kHz the results are : 125:: -> 54 dB 250 Hz:: -> 69.9 dB 500Hz:: -> 86.3 db (...)

## Programmable sine wave algorithms for SHARC DSPs

Hello, does anyone have any EFFICIENT assembly CODE to produce sine/cosine waves for the ADSP-212xx? I need to produce a programmable sin/cos oscillator with 1Hz (prefer 0.1Hz) resolution between 100Hz and 20KHz. I used a sine approximation algorithm (using sine table) (...)

## Question about the waves sinusoidalis

I thing that sinusoidalis in sinusoide In a linear system a sinusoide has gone out as a sinusoide

## 1GHz pulse appld to antenna

Hi. A "pulse" alway includes not only the center freq (e.g. 1GHz) but also other frequencies. Your pulse is just a superposition of sin-waves at all different freq. The behaivior of antenna excited by a pulse is determined by the behaivor of the antenna at all this different freq. F.

Last searching phrases:

seven | three way | first course | mean well | forth | keep out | three way | nobody | nobody | and nor