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17 Threads found on edaboard.com: **Sin Waves**

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

ASIC Design Methodologies and Tools (Digital) :: 08-16-2016 22:11 :: elec_eng92 :: Replies: **0** :: Views: **919**

126013
I can see that Complete modulation is not achieved u**sin**g 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/ cau**sin**g output to

Analog Circuit Design :: 02-11-2016 00:21 :: preethi19 :: Replies: **10** :: Views: **2169**

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

PLD, SPLD, GAL, CPLD, FPGA Design :: 10-19-2014 10:25 :: Christian Chetcuti :: Replies: **2** :: Views: **778**

Hello.
To give some more information on what I am to use this for: I have two signals. Both are periodic **sin**e **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) = (...)

Digital Signal Processing :: 02-19-2013 13:38 :: Phataas :: Replies: **0** :: Views: **757**

A true multiplication of two **sin**e **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

Elementary Electronic Questions :: 01-16-2013 12:14 :: keith1200rs :: Replies: **2** :: Views: **6908**

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 u**sin**g the Re/Im to Complex Function. And I used four different values of theta.
However, when I output the values (...)

Microcontrollers :: 06-19-2012 20:01 :: abr_pr90 :: Replies: **0** :: Views: **695**

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 (...)

Analog Circuit Design :: 04-01-2010 05:58 :: Davidy :: Replies: **4** :: Views: **2606**

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???

Digital communication :: 12-29-2009 06:32 :: besongsamuel :: Replies: **2** :: Views: **1846**

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 **sin**e **waves** with opposite signs at two c

Electromagnetic Design and Simulation :: 08-02-2009 18:43 :: iyami :: Replies: **2** :: Views: **2157**

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

PCB Routing Schematic Layout software and Simulation :: 06-29-2009 05:16 :: Mohammad Ilyas :: Replies: **0** :: Views: **3748**

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

Microcontrollers :: 04-21-2009 08:45 :: shrikant_varpe :: Replies: **3** :: Views: **9728**

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 **sin**e 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

Elementary Electronic Questions :: 05-22-2008 20:47 :: Kral :: Replies: **5** :: Views: **1998**

i wud b glad if anyboby cud help me in providin a solution 2 dis querry of mine..
m u**sin**g ATmega 8L for making a function generator..dere m u**sin** 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 (...)

Microcontrollers :: 05-20-2008 23:44 :: hugo :: Replies: **15** :: Views: **2760**

Hi, I am doing experience on measuring the SPL of **sin**e **waves** generated from computer by a simple Sound Level meter u**sin**g 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 (...)

Mathematics and Physics :: 03-15-2008 15:28 :: Foufou :: Replies: **6** :: Views: **1474**

Hello,
does anyone have any EFFICIENT assembly CODE to produce **sin**e/co**sin**e **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 **sin**e approximation algorithm (u**sin**g **sin**e table) (...)

Digital Signal Processing :: 01-28-2005 14:23 :: kirgizz :: Replies: **6** :: Views: **2828**

I thing that **sin**usoidalis in **sin**usoide
In a linear system a **sin**usoide has gone out as a **sin**usoide

Elementary Electronic Questions :: 12-16-2004 04:51 :: ulderico :: Replies: **11** :: Views: **1603**

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.

RF, Microwave, Antennas and Optics :: 09-01-2004 06:47 :: RFSimulator :: Replies: **1** :: Views: **1158**

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