【正文】 ve, chasing different AN according to the above rule, the generation go acquire receive the signal matrix to resolve for the corpse independent row sigh, , to carry on the ML examination respectively all the way each time, can immediately be correspond of FSKSend out a form and send out sign to estimate a value, enter to make a conversion through K/2, get originality two Enter to make a data to flow of estimate a value a function is analytical From the type((4)with figure 2 medium can see, the wood text put forward of the examination method make ML examination mountain the consociation of several vectors examination the problem separate for the The respectively examine of the quantity problem, namely to each vector Cr that has been re constructed. P The P carry on biggest however examination, we know in a send out the signal matrix FSK wave form of send out the number is a P, then receiving to carry to need to carry on a ML examination,FSK wave form can be estimate directly. Compute plications and P presents line Relate to, also be with send out antenna few Ms to present the line sexual behavior, along with send out the big line number The increment of the quantity, with concern with an examination not}I, z}and the adoption all search of concern with examination to pare, Let up 3 plexity of the receiver structures and the calculation plications consumedly, but its premiseThe condition is to need to know the letter way an appearance information, so need to carry on to believe an estimate of. When Separate the examination method adoption according to the best method trained a sequence[}e}carry on believing a way to estimate a value Hour, its plications will have increment, supposing at this time from send out training sign to constituteThe matrix is a X, , correspond of receive the signal matrix as Yr, then estimate letter way for H=Y, take sentencing a FSK wave form as standard, parisonThe separation examination method and cultural heritage that this text put forward[concern with an examination and adopt not in 1,2] whole Search of concern with an examination to translate the code plications, the result From table 1 can see, be adoption all search to concern with examination it translates code the degree and cultural heritage of concern with an examination not equal。 cultural heritage[2] in of not mutually thousand examination The method pare above two kinds of plications have to lower 。however this 3 kinds of methods of the operations re miscellaneous degree all bees a direct proportion with KM, namely with send out the antenna number to present the index number relation。 but adoption centLeave the ML receiver structure, operate plications with send out antenna to present line sexual behavior。Among them mean according to train the sequence letter way plications for , M=4(P=4), N=1 is example, only consider multiplication operation, 4 kinds of squares Method from go to bottom up of operation quantity respectively is 17408. 15872. 17408 and see plications of a separation ML examination calculate way reduce the I piece quantity class.Among them p=the M /hour for each a receive the letter ratio of the antenna((SNR), Under the sort circumstance There is the direct relation expression type, therefore very difficult function pared both directly. But textDedicate[3] give function that have already known H under the certain condition pare and don39。t know H about Hour of function like 2 doubly, to single importation list output the FSK make of imitate true enunciation, at Medium etc. letter the pare the hour concern with examination pare not concern with examination function good about 3 dB So IC an estimate to under general circumstance the advantage concerned with an examination to bring should be big in the list Antenna of 3, but can39。t attain so good function of 2 M N s, either. Moreover accurate Of estimate of can Be giving to settle under the parameter circumstance, pute an all strange values to acquire. Such as for M=2} Ns=1 of circumstance, adopt the most in mon use of hour postpone the best whole hand over a design actually, Of biggest be worth for the 1/x/ from A}arrive To k39。 all binations carry on a calculation, can get X most Greatly strange value is ten thousand, while attain the same mistake code function top boundary, parison the type and type, can be concern with the examination letter ratio and concern with an examination letter a ratio notSeveral of the relation of }=P}/}Z(1+2 pus)} be, concern with the examination ratio to concern with the examination function not on the wood can good 6 dB o But because of type(9) is according to the parison of the mistake code function top boundary, the both sexes can ascend the boundaryLoose tight the degree is different, so with actual the function contain certain difference, passing a following calculation The machine emulation imitated to really give confirmation, the a function difference is or so in the 3 be over languages Imitate a true result We verified the wood text to put forward first of the separation ML examination calculate way and adopt whole Hour of the ML examination search of the function is pletely consistent, agreeing with the theories analysis .Then We to M=2(as a result P=2) and K=2(as a result T=4) of the ST FSK ado p t The function that concerns with of[with] the separation ML examination method that the examination and this text put forward not makeImitate a true parison. For simple rise to see in all l y imitate really all suppose receive the antenna number for1, the letter way is an AWGN flat benefit edown the letter way, and protect in time length T Hold constantly, separate the ML examination method among them respectively imitate really believe a way and estimate in the idea l A cc the letter way under condition of function. Imitate a true results h as figure,3 show .See from the diagram, Ideal letter way under circumstance concern with examination pare not concern with t