From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 3547/CH8/EX8.6/EX8_6.sce | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 3547/CH8/EX8.6/EX8_6.sce

(limited to '3547/CH8/EX8.6/EX8_6.sce')

diff --git a/3547/CH8/EX8.6/EX8_6.sce b/3547/CH8/EX8.6/EX8_6.sce
new file mode 100644
index 000000000..700f9856d
--- /dev/null
+++ b/3547/CH8/EX8.6/EX8_6.sce
@@ -0,0 +1,21 @@
+// Example 8.6
+// To find the mean number of signal photons required in a shot noise-limited coherent communication system based on OOK for the following cases: (i) balanced homodyne receiver; (ii)balanced heterodyne receiver (a) a balanced homodyne or (b) a balanced heterodyne
+// Page no. 384
+
+clc;
+clear;
+close;
+
+// Given data
+Pb=1*10^-9;                                         //Error probability
+neta=1;                                          //quantum efficiency
+
+//a)for balanced homodyne receiver
+Ns=(erfinv(1-(2*neta*Pb)))^2;
+
+//(b)for balanced heterodyne receiver
+Ns1=(erfinv(1-(2*neta*Pb))*sqrt(2))^2;
+
+//Displaying the result in command window
+printf("\n For a balanced homodyne receiver with PSK signal = %0.0f  ",Ns);
+printf("\n For a balanced heterodyne receiver with PSK signal = %0.0f  ",Ns1);
-- 
cgit