Changes between Version 65 and Version 66 of Other/Summer/2015/aSDR2

Timestamp:

Jun 25, 2015, 3:40:20 PM (9 years ago)

Author:

mlcoll

Comment:

—

Other/Summer/2015/aSDR2

@@ -117 +117 @@
 Using OML, we save the receiver readings to a file for processing in MATLAB/Octave. Using a MATLAB script, we generate a waterfall plot of the data, along with an animated power vs. frequency plot.
 [[BR]][[BR]]
+
+{{{#!html
+
+<img src="http://www.orbit-lab.org/raw-attachment/wiki/Other/Summer/2015/aSDR2/exp1_3.png" align=left width=30% hspace=15>
+
+}}}
+
+'''Update: Raw IQ Samples and Processing in MATLAB'''
+
 Next, using the same frequencies and sampling rate as the original tutorial, we modified the OEDL script in order to collect raw time domain samples using ORBIT as opposed to samples that had already been converted into the frequency domain. 
 [[BR]][[BR]]
-We then wrote a MATLAB script entitled "Spectro" which we used to convert the raw data into the frequency domain. From there, we again generate a waterfall plot of the data.
+We then wrote a MATLAB script entitled "spectro" which we used to convert the raw data into the frequency domain. From there, we again generate a waterfall plot of the data.
+[[BR]][[BR]]
+Using the raw IQ samples instead of preprocessed FFT data allows for more flexibility in our signal processing. We now have access to a much larger collection of data, and we can produce more accurate frequency domain transforms.