# -*- coding: utf-8 -*-
"""
Created on Mon Aug 11 19:15:03 2014

@author: Anish
"""
# Importing libraries 
import os
os.system('cls')
import numpy as np
import matplotlib.pyplot as plt

N = 145
a =  3  #scale parameter
nvec = np.linspace(-N+1, N-1, num=N)
y1 = sin(exp(-nvec/N)) 
#clf()
plt.plot(nvec,y1,label="Original")

y1_scaled = sin(exp(-a*nvec/N))

plt.plot(nvec,y1_scaled,label="Scaled")
plt.xlabel('time')
plt.ylabel('Signal')
legend(bbox_to_anchor=(.5, .9), loc=1, borderaxespad=0.)

Scaling for 1D Signals

A simple illustration of effect of scaling on signal structure

Scaling Property for signals

Python