How Do You Calculate Amplification and Non-Linear Distortion in C?

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In summary, the program is designed to calculate the amplification, harmonic percentage, and non-linear distortion coefficient of a device based on the input and output signals represented in a data file. The fundamental amplification is the ratio of the amplitude of the output signal to the amplitude of the input signal at the fundamental frequency. The harmonic percentage is the ratio of the amplitude of each harmonic of the output signal to the amplitude of the fundamental frequency of the output signal. Non-linear distortion is a measure of how much of a signal is distorted when it passes through a non-linear system.
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pabijek
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Data file is a text file. there are 2 columns of integers < 2^16.
these numbers in data files represent input and output signals of some device.
input signal is cosinus wave with constant component. output signal is also a periodic signal.

Program should find amplification of described device for fundamental frequency, each harmonic percentage in output signal and non-linear distortion coefficent of output signal.


This is my C program... and I need to calculate these two underlined things and i don't know how... could you help me, please?? and could you explain what is this non-linear distortion??

thank you,
bartek
 
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#include <stdio.h>#define MAX_SIZE 100 int main(){ FILE *fp; int i, n, index; double x[MAX_SIZE], y[MAX_SIZE]; double fundamental_amplification, harmonic_percentage, non_linear_distortion; fp = fopen("data.txt", "r"); if(fp == NULL) { printf("Error opening the file\n"); return -1; } // Read the input and output signals from the file fscanf(fp, "%d", &n); for(i=0; i<n; i++) { fscanf(fp, "%lf %lf", &x, &y); } // Calculate the fundamental amplification of the device fundamental_amplification = y[0]/x[0]; // Calculate the harmonic percentage in the output signal // Calculate the non-linear distortion coefficient of the output signal fclose(fp); return 0;}The fundamental amplification is the ratio of the amplitude of the output signal to the amplitude of the input signal at the fundamental frequency. To calculate it, you simply need to divide the amplitude of the output signal by the amplitude of the input signal at the fundamental frequency.The harmonic percentage is the ratio of the amplitude of each harmonic of the output signal to the amplitude of the fundamental frequency of the output signal. To calculate it, you need to divide the amplitude of each harmonic of the output signal by the amplitude of the fundamental frequency of the output signal.Non-linear distortion is a measure of how much of a signal is distorted when it passes through a non-linear system. To calculate it, you need to compare the waveform of the output signal to the waveform of the input signal and measure how much they differ.
 

FAQ: How Do You Calculate Amplification and Non-Linear Distortion in C?

What are waves?

Waves are a form of energy that travels through a medium, such as water or air. They are created by a disturbance in the medium and can transfer energy over long distances.

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Transverse waves move perpendicular to the direction of the disturbance, while longitudinal waves move parallel to the direction of the disturbance. An example of a transverse wave is a water wave, while an example of a longitudinal wave is a sound wave.

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Waves have several important properties, including amplitude, wavelength, frequency, and speed. Amplitude is the height of a wave, wavelength is the distance between two consecutive peaks or troughs, frequency is the number of waves that pass a point in a given time, and speed is the rate at which a wave travels.

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