function [ STOPS ] = make_stops(Lh,SYMBOLS)%% MAKE_STOPS:%           This code returns a statenumber corresponding to the set of%           legal stop states as found from Lh. The method is to use the table%           of symbolic stop states as it is listed in the report made %           by 95gr870T. For the table lookups are made in SYMBOLS. in %           order to map from the symbol representation to the state number %           representation.%% SYNTAX:   [ STOPS ] = make_stops(Lh,SYMBOLS)%% INPUT:    SYMBOLS: The table of symbols corresponding the the state-%                    numbers.%           Lh:      Length of the estimated impulseresponse.%% OUTPUT:   STOPS:   The number representation of the set of legal stop %                    states.%% SUB_FUNC: None%% WARNINGS: The table of symbolic representations has not been verified%           but is used directly as it is listed in the report made %           by 95gr870T.%% TEST(S):  The function has been verified to return a state number%           which matches the symbolic representation.%% AUTOR:    Jan H. Mikkelsen / Arne Norre Ekstr鴐% EMAIL:    hmi@kom.auc.dk / aneks@kom.auc.dk%% $Id: make_stops.m,v 1.2 1997/09/22 11:44:21 aneks Exp $% OBTAIN THE SYMBOLS FROM Lh. THIS IS THE TABLE LISTED IN THE REPORT MADE % BY 95gr870T. (SATEREPRESENTATION IS SLIGHTLY CHANGED).%if Lh==1,  stop_symbols = [ -1 ];  count=1;elseif Lh==2,  stop_symbols = [ -1 j ];  count=1;elseif Lh==3,  stop_symbols = [ -1 j 1 ];  count=1;elseif Lh==4,  stop_symbols = [ [ -1 j 1 -j ] ; [ -1 j 1 j ] ];  count=2;else  fprintf('\n\nError: Illegal value of Lh, terminating...');end% NOW THAT WE HAVE THE SYMBOL REPRESENTATION THE REMAINING JOB IS% TO MAP THE MSK SYMBOLS TO STATE NUMBERS%index = 0;stops_found=0;while stops_found < count,  index=index+1;  if sum(SYMBOLS(index,:)==stop_symbols(stops_found+1,:))==Lh,    stops_found=stops_found+1;    STOPS(stops_found)=index;  endend