Given IQ data of a signal I is real Q is complex I 0001 002

Given IQ data of a signal (I is real, Q is complex) I = 0.001, 0.02, 0.03, 0.005 Q = 0.4, 0.005, 0.02, 0.055 Using Python, write a script to calculate the FFT and graph the spectral density.

Solution

import subprocess import sys HOST=\"www.example.org\" # Ports are handled in ~/.ssh/config since we use OpenSSH COMMAND=\"uname -a\" ssh = subprocess.Popen([\"ssh\", \"%s\" % HOST, COMMAND], shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE) result = ssh.stdout.readlines() if result == []: error = ssh.stderr.readlines() print >>sys.stderr, \"ERROR: %s\" % error else: print result