From e1231e86ba108f9a8139e77f77df6df06fc2ee62 Mon Sep 17 00:00:00 2001 From: Renaud Gonce Date: Fri, 12 Jun 2020 21:23:23 +0200 Subject: [PATCH] Add new file --- pammod | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 pammod diff --git a/pammod b/pammod new file mode 100644 index 0000000..4bec4e1 --- /dev/null +++ b/pammod @@ -0,0 +1,20 @@ +function [s] = pammod(N_symbols,M) +% Randomly produces a sequence of N_symbols symbols, using a PAM modulation +% with parameter M, giving the number of possible symbol values. M should +% be a power of 2 ; the number of bits per symbol is then given by log_2(M) + +symbols_TX = (rand(N_symbols,1)-0.5)*M; + +s = zeros(N_symbols,1); + +for i = 1:N_symbols + if symbols_TX(i) == 0 + s(i) = -1; + elseif symbols_TX(i) < 0 + s(i) = floor(symbols_TX(i))*2+1; + elseif symbols_TX(i) > 0 + s(i) = ceil(symbols_TX(i))*2-1; + end +end + +end \ No newline at end of file -- GitLab