Merge pull request #304 from jmfriedt/master

SDR/DSP devroom header text

Author: johanvdw

content/schedule/devrooms/sdr-dsp.html

@@ -0,0 +1,6 @@
+The software defined radio/digital signal processing (SDR/DSP) devroom
+addresses discrete time (radiofrequency) signal processing including
+digital communication, channel characterization, navigation and positioning, 
+target ranging and velocity measurement, and signal characteristics extraction 
+from raw IQ samples collected from single or multiple antennas. Software and 
+hardware challenges are tackled.