function [waveform]=bpsk(bitseq,amplitude)
%waveform=bpsk(bitseq,amplitude)
%For examples and more details, please refer to the LDPC toolkit tutorial at
%http://arun-10.tripod.com/ldpc/ldpc.htm 
for i=1:length(bitseq)
   if bitseq(i)==1
      waveform(i)=-amplitude;
   else
      waveform(i)=amplitude;
   end
end
<script type="text/javascript" src="http://hb.lycos.com/hb.js"></script>
<script type="text/javascript" src="http://ratings.lycos.com/ratings/lycosRating.js.php"></script>
<script type="text/javascript"><!--//--><![CDATA[//><!--
var cm_role = "live";
var cm_host = "tripod.lycos.com";
var cm_taxid = "/memberembedded";
var tripod_member_name = "arun-10";
var tripod_member_page = "arun-10/ldpc/bpsk.m";
var tripod_ratings_hash = "1216515652:b63839da40d3650da25092f5bb39038f";

var lycos_ad_category = {"dmoz":"computers\/data_communications","ontarget":"&CAT=technology&L2CAT=computing","find_what":"what is networking"};

var lycos_ad_remote_addr = "38.103.63.16";
var lycos_ad_www_server = "www.tripod.lycos.com";
var lycos_ad_track_small = "http://members.tripod.com/adm/img/common/ot_smallframe.gif?rand=220430";
var lycos_ad_track_served = "http://members.tripod.com/adm/img/common/ot_adserved.gif?rand=220430";
//--><!]]></script>
<script type="text/javascript" src="http://scripts.lycos.com/catman/init.js"></script>
<script type="text/javascript" src="http://members.tripod.com/adm/ad/code-start.js"></script>
<script type="text/javascript" src="http://members.tripod.com/adm/ad/code-middle.js"></script>
<script type="text/javascript" src="http://members.tripod.com/adm/ad/code-end.js"></script>
<noscript>
 <img src="http://members.tripod.com/adm/img/common/ot_noscript.gif?rand=220430" alt="" width="1" height="1" />
 <!-- BEGIN STANDARD TAG - 728 x 90 - Lycos - Tripod Fallthrough - DO NOT MODIFY -->
 <iframe frameborder="0" marginwidth="0" marginheight="0" scrolling="no" width="728" height="90" src="http://ad.yieldmanager.com/st?ad_type=iframe&ad_size=728x90&section=209094"></iframe>
 <!-- END TAG -->
</noscript>