Basing on the research of the geometric continuous condoition of two patches , this paper gives a method for merging two bezier surfaces with the construction of transition band which improves the result of liu ding - yuan and hu kang - sheng 摘要在研究兩曲面片間幾何連續(xù)條件基礎(chǔ)上,給出了運用構(gòu)造過渡曲面片來光滑地連接兩相鄰曲面片的一種方法,所得結(jié)果是對劉鼎元,胡康生等研究成果的改進(jìn),并給出了本算法的試驗結(jié)果。
This method can not only minimize the stopband energy of the prototype filter , but also determines the inter symbol interference power and the transition band energy , which can be used to design prototype filters for both the critically sampled fmt system and the non - critically sampled fmt system 該方法不僅可以最小化原型濾波器的阻帶能量,還界定了符號干擾功率、過渡帶能量,適用于嚴(yán)格采樣和非嚴(yán)格采樣濾波多音調(diào)制系統(tǒng)。
For the receiver which uses the intermediate frequency real signal output manner , a good frequency plan should guarantee the transition band of the “ spectrum blocks ” which produced by the sampling as wide as possible , so as to ease the burden of the base - band signal processing to the minimum level . it has not been particularly analyzed in the former references about receiver design , and the main 在以往有關(guān)接收機(jī)設(shè)計的文獻(xiàn)中很少對此進(jìn)行過詳細(xì)的分析,其主要原因是大多數(shù)接收機(jī)系統(tǒng)的信號帶寬較窄(通常在2 、 3mhz以下) , fif和fs受到的限制較少,可以很輕易的保證采樣之后各“譜塊”有足夠的過渡帶寬。
The transition band is a range of frequencies, that allows a transition between a passband and a stopband of a signal processing filter. The transition band is defined by a passband and a stopband cutoff frequency or corner frequency.
transition: n. 轉(zhuǎn)變,演變,變遷,變化;飛越;過渡期;【音樂】變調(diào) ...band: n. 1.隊,團(tuán),群;(盜賊等的)幫,伙。 2.(吹奏) ...band to band transition: 帶間躍遷band-to-band transition: 帶間躍遷band transition profile: 帶移圖,帶轉(zhuǎn)換輪廓圖transition: n. 轉(zhuǎn)變,演變,變遷,變化;飛越;過渡期;【音樂】變調(diào),轉(zhuǎn)調(diào);【修辭學(xué)】語次轉(zhuǎn)變;【語法】轉(zhuǎn)換;【物理學(xué)】躍遷;【地質(zhì)學(xué);地理學(xué)】轉(zhuǎn)移層;【建筑】(式樣、時期等的)過渡。 forced transition 【物理學(xué)】受迫躍遷。 a transition period [stage] 過渡時期[階段]。 an age of transition 過渡期。 -al, -ary adj.,-ally adv. transition in: 過渡段transition to: 路由至; 向……過渡; 向……轉(zhuǎn)變a band: a波段; a帶a-band: a波段; a帶band: n. 1.帶,繩;帶形物;箍;箍條;嵌條;鑲邊;鋸條; 〔pl.〕 (法官等的)寬領(lǐng)帶。 2.束縛,羈絆;義務(wù);〔古語〕縲紲,枷,鐐,銬(等)。 3.【建筑】帶形裝飾,帶花;【生物學(xué)】橫紋。 4.【物理學(xué)】頻帶,波段;光帶;【機(jī)械工程】調(diào)帶;【地質(zhì)學(xué);地理學(xué)】夾層;【無線電】波段。 5.(裝訂)釘書線,綴線。 an iron band 鐵箍。 a legal [moral] band法律[道義]上的義務(wù)。 a rubber band 橡皮筋,橡皮圈。 vt. 1.用帶捆扎。 2.在…上加條飾[鑲邊]。 3.[后接復(fù)數(shù)反身代詞或用被動語態(tài)]團(tuán)結(jié),聯(lián)合。 They are banded together closely. 他們緊密團(tuán)結(jié)。 We band ourselves closely against the invaders. 我們緊密地團(tuán)結(jié)起來抗擊入侵者。 vi. 團(tuán)結(jié),聯(lián)合 (with). n. 1.隊,團(tuán),群;(盜賊等的)幫,伙。 2.(吹奏)樂隊。 a band of robbers 一伙強(qiáng)盜。 a band of stray dogs 一群野狗。 a dance band 跳舞的伴奏樂隊。 a military [marine] band 陸軍[海軍]軍樂隊。 the B- of Hope 〔英國〕少年禁酒團(tuán)。 beat the band 〔美國〕顯眼,出眾;猛烈地;非常 (It rained all day to beat the band. 大雨傾盆,終日不止。 Business fell off to beat the band. 生意一落千丈)。 when the band begins to play 事態(tài)變嚴(yán)重時。 band s: s波段s band: s波段; s頻帶s-band: S 波段〔一種無線電超高頻波段〕。 t band: t帶,端粒帶t-band: t帶:用t染色法在染色體上產(chǎn)生帶the band: 樂隊”a transition period: 過度時期abrupt transition: 擠塑模頭陡變區(qū)absorbing transition: 吸收躍遷absorptive transition: 吸收過渡accelerating transition: 垂直飛行向水平飛行的過渡active transition: 活動變換; 有效變換agriculture in transition: 轉(zhuǎn)變中的農(nóng)業(yè)alder transition: 阿爾得躍遷