ժ ҪϾģʽĶWƻϽMԼvc̎cʹÌǰڜʂ乤׃øPIl(f)]Ͼģʽ(yu)ݣ˻ϾǰڹҪص׃ǰڹĽMʩM̽ӑ
1ǰ
ϾģʽָߎԺУɂI(y)(ÿI(y)24)ČMһ֧16Ҏ(gu)ģČһеȌWУȫίԓУȫ桢ȫָĽģʽ[1]cģʽϾģʽWƻϽMԼvc̎cʹÌǰڜʂ乤׃øPIʂ乤ǷֱӛQϾijɹ
ǰڹָǞ_չĜʂ乤ЏVxͪMx֮VxǰڹָǏĎW֮ǰ_չ˼롢Փ`ϵĜʂMxǰڹָnjǰһW˼I(y)MϵĜʂӑՓǪMxϵǰڹ
2ǰڹҪط
ǂϵy(tng)漰ЌWϵy(tng)ʹWϵy(tng)ɴǰڹҪ漰Wϵy(tng)Wϵy(tng)ҪҪн̄̎I(y)Ժϵ̎͌Wڂy(tng)οƼжcģʽϾģʽǰڹҪصĽMɛ]аl(f)׃ǸҪصðl(f)^׃׃ҪwF(xin)ڴWϵy(tng)ҪҪص׃
(1)Ҫ̄̎ąf(xi){
ϾI(y)ČϽMHI(y)ԺϵMнMyMеϾҪģʽȂy(tng)ģʽҪ̄̎Mнy(tng)һĽMcf(xi){
(2)I(y)Ժϵ
mȻƬM꠵ȹɽ̄̎y(tng)һMnjI(y)ԺϵϽ̄̎Ì]̎ͬrMcԺϵI(y)Լ̎팍^гF(xin)ĸN}
(3)̎Ҫl(f)׃
ڂy(tng)οƼжcģʽ£ώؓWI(y)ָҪ̎߂䃞(yu)ČWƽ̌WϾģʽίЌWУȫȫָvc̎cʹÎώҪГČI(y)ָҪ؟ָMꠣWcWУͨf(xi){Ҫ̎^Ĺf(xi){
(4)ͻԌwҹ
ϾŌWWڻϾvc̎cʹý_չcWУĜͨLLɌxÿͨ^ƽгɞ錍LęC@N͵Č^УķeOԱõ{Iͅf(xi){Mõ呟wõõ˳ֵİl(f)]
3ǰڹĽMʩ
^y(tng)ģʽϾģʽǰڹĽMʩԽ̄̎ǰڹMʩăҪ˼ʂI(y)ʂͽMʂ
3.1˼ϣy(tng)һJR_x
˼ָЄӡֻ˼_JRָО鲢Ȼ錍HЄӡ_WWУMPԺϵI͌Wƽ̌W̎_hоһÎČʹȫУ϶³JR쾎ҪĿcxI(y)ԺϵI̎MЄӆTʹJRϾB(yng)m21oҪF(xin)̎Ҫ;JRͨ^_얹̺\WĻAՓI(y)֪Rͻ@PЌW̌Wȫ呟B(yng)̌WϵĪMһҎ(gu);ͨ^Mһc˜ͨij;ͨ^ȫzԼڵȱcԼ֮̎ԱMһľC|
3.2I(y)ӖҪ
ץÎӖǻϾȡóɹĻAڌԲͬԺϵқ]Ў̎vУF꠵ĽM^y@NrҪӰ푌WУ̌WMٵӌWУI̎Ĺ͉ؓʹWУԺgӭУ@Ҫ҂ɳȥČ|Ҫߎ̌WˮƽҪЌץÎӖ
(1)ץÎӖġġ塱
ӖǎB(yng)ҪҲǸûϾĻAǰץáӖҪJɡI(y)Ķʹ_F(xin)֡ץá헡ӖͨԒͿ^_Ӗ䓹Pֺͷ۹P֕Ӗ̌WӖԼιӖͬrҪnjǰɲύ傀һһ̰һnһn̰һݵڶn÷ԼһǰĜʂ係Yl(f)ǰɌLMz顣ŌWƽָ̎̎nԇv_ÿһڌǰv_܌̰(ӽ̰)ͻܰ_ȥǰF(xin)֡Õrg呟ԼԼ
(2)ekϵЎِܸʹMӖ
MȫУϵԵĎِܸIõĎӖՇʹMȫУĎB(yng)AώWÿϰekȫУCԎِܴ磺nĶýwnِný̌Wġ족ný̌W(yu)㪄uԼ̌WܞĻ̌WِܸҪмĎِپِ
3.3MϣҪ̄̎y(tng)һMcf(xi){
ĵĽMܵİǻϾģʽȡóɹıMԽ֣]ԽȫɹʩĿԾԽ֮ͿʧڻϾģʽɲͬI(y)ČϽMɌꠣHWԺMнMyMɌWУy(tng)һMcf(xi){ϸԺϵYԴ{ӸԺϵķeO
1)y(tng)һ(lin)ϵWУ_λ
λijcǻϾʩĻAÿꌍǰׂ¾(lin)ϵWУռWУϢҪ܌ĿĿ˔סޗl̲İ汾ͬrI(y)Ժϵy(tng)ӋͱWԺӻ쾎˔ŮƬؓ؟̎һغλWУٰl(f)ڶc(lin)ϵcУPϵ^еČWУֱ(lin)ϵλֹ
2)MWMF
WF꠵ĽMǻϾģʽǰڹMʩwڻϾ_չ|PҪMʩE£
(1)MW
ռÌWغϢMMЈڻϾ漰WƱ࣬鱣C쾎ĹƽԺԡԸȈȵáԭtԷI(y)֕rεʽMнMÿʽ֮ǰMһAԙzyϵy(tng)Ϥϵy(tng)\__І}QԺŽMʽ
(2)M
ǻϾĻλÿ漰ǧϰgWУHWУܲTֱӹDz̫ˑзƬ̎ؓ؟ƣhWУ֞Ƭ^(q)ÿƬ^(q)(3-5WУ)ɌTƬ̎ؓ؟Mcf(xi){֮_Ƭ̎(ɸWԺ])h䌍Ƭ̎΄(ƬώҪؓ؟Ĺcf(xi){)ڄֺƬ^(q)䌍÷Ƭ̎WУy(tng)һMƬ̎Ƭ^(q)MЄӆTͬһWУČJRQԒ̖aͨŵַϢxRrL
(3)xL
쾎L^̵ĺܶؓώĹ꠵ĽMcf(xi){ǰĸ헎ӖcWУIƬώ̄̎ώĜͨcf(xi){ȹ_xԸ꠆TLLʽxeһ㰲꠆TҊJR˽ҲMСRrLؓ؟Mȫw꠆TͶƱxLLԺČ
(4)ӖL
LӖǻ쾎ǰڜʂ乤PIh(hun)(ji)ӖЧÉֱӰܷ_չԼܷɌ΄LӖҪׂăݣ
Ҫ_L؟˽Pļl;
Ոһõă(yu)㌍LBҪL_ټӏwsuкl(f)]ÿһ꠆Tãÿһ꠆TFYȫw꠆T˷NyɌ΄գՌFðl(f)]͌_չһ^ֶΣcWУI̎ҪעĆ}ԼΠȡ҂֧
ҪLcٽ꠲ͺͨӍڽMȫw꠆TWWУPļƶӋ͌Ҏ(gu)܌ǰMMЎӖMаȫ_ˆTȫ(lin)ϵWУĽͨߣÌǰ|ʂ_M_֧˜ʺIȡk
3)˽⌍WУról(f)ǰʂ
ڌMԺɌͨ^N;˽⌍WУ(lin)ϵWУPؓ؟˻̎WУĻ쾎ӋӋԼ꠆TPϢ]ĽoWУǰɷƬώILWУcWУf˽⌍WУwr͌漰סޡn꼉̲İ汾꠆TPĵĆ}ԃWУҪLڲc֮ǰռ꠆TPĵʳޡ̌WȆ}ȡcrһһ䌍Уȫw꠆Tcr
֮ǰڹǻ쾎Ҫh(hun)(ji)ʂcֱӛQ쾎ģʽܷɹʩǰڹʂԽ쾎ă(yu)ݾԽ@ЧԽ
īI
[1]ꐼƽ.Ͼģʽ̽ӑ[J].̎о(ߵȎо).2000(4):55-59.
[2]ꐼƽ.ߎ¸-Ͼģʽ}wc[M].V|200321.
ԴWj ؟ăHތWa}Ո(lin)ϵ҂rh