transceiver: Add an option to generate random Access Bursts.
diff --git a/Transceiver52M/sigProcLib.cpp b/Transceiver52M/sigProcLib.cpp
index 9674aa8..2182550 100644
--- a/Transceiver52M/sigProcLib.cpp
+++ b/Transceiver52M/sigProcLib.cpp
@@ -1005,6 +1005,39 @@
return burst;
}
+/*
+ * Generate a random GSM access burst.
+ */
+signalVector *genRandAccessBurst(int sps, int tn)
+{
+ if ((tn < 0) || (tn > 7))
+ return NULL;
+ if ((sps != 1) && (sps != 4))
+ return NULL;
+
+ int i = 0;
+ BitVector *bits = new BitVector(88);
+ signalVector *burst;
+
+ /* head and synch bits */
+ for (int n = 0; i < 49; i++, n++)
+ (*bits)[i] = gRACHBurst[n];
+
+ /* Random bits */
+ for (; i < 85; i++)
+ (*bits)[i] = rand() % 2;
+
+ /* Tail bits */
+ for (; i < 88; i++)
+ (*bits)[i] = 0;
+
+ int guard = 68 + !(tn % 4);
+ burst = modulateBurst(*bits, guard, sps);
+ delete bits;
+
+ return burst;
+}
+
signalVector *generateEmptyBurst(int sps, int tn)
{
if ((tn < 0) || (tn > 7))