aspect n. 1.樣子,光景;容貌,神色。 2.(房屋等的)方向,方位。 3.局勢(shì),形勢(shì),局面。 4.(問(wèn)題的)方面;見地。 5.【語(yǔ)法】體,態(tài)。 a beautiful aspect 好景;美觀。 a thing in its true aspect 事物的真相。 The house has a southern aspect. 那間房子朝南。 the physical aspect of China 中國(guó)的地勢(shì)。 consider a question in all its aspects 由各方面考慮問(wèn)題。 assume [take on] a new aspect 面目一新,呈新局面。
Firstly , with the consideration of the frequency and aspect angle dependent parameters of the low frequency uwb - sar , the radar equation for calibration is proposed 首先充分考慮了系統(tǒng)參量的頻率和方位角特性,提出了適合低頻uwb - sar校準(zhǔn)的雷達(dá)方程。
Additionally , target detection will take into account a target ' s radar cross section ( rcs ) , its aspect angle , and its air speed ( targets below the threshold gate will not be detected ) 外加目標(biāo)的確定怎加了計(jì)算目標(biāo)的rcs值當(dāng)空速低于這個(gè)門限的時(shí)候目標(biāo)將無(wú)法被察覺(jué)
This method can save the space of memory and reduce the computation time . because only the parameters of scattering centers are stored and genetic algorithm is used to search for aspect angle , the method is very suitable for the employment in real - time and restrictive environment . in chapter 3 , the architecture of mmw seeker is studied 該方法以目標(biāo)多散射中心理論為基礎(chǔ),只需要存貯目標(biāo)的三維散射模型參數(shù),需要的存貯量較少;與常規(guī)的全姿態(tài)角匹配識(shí)別方法比較,基于目標(biāo)散射模型的匹配識(shí)別方法,由于利用了遺傳算法的全局尋優(yōu)能力,計(jì)算量較小。
Evenly , to the economic benefits , they have destroyed tourist resources and their environment . so the tourist academe should make a breach in the study of problem of tourist environment , a system of theory and means which is effective in practices . on the base of study practices and investigates outdoors , this paper puts forward a signify idea of tourist resource environment management , and design a system of nature landscape tourist resources environment , which is full , systematic and material , including a system of ideas and a system of means , to try hard to seek a new aspect angle for the tourist academe 本文在科研實(shí)踐和野外調(diào)查的基礎(chǔ)上,從自然風(fēng)景區(qū)旅游資源(生境)的理論認(rèn)識(shí)出發(fā),提出旅游資源環(huán)境管理的重要思想,并從理念體系到方法體系構(gòu)建出一個(gè)完整的系統(tǒng)的邏輯遞進(jìn)的又具體可行的旅游資源環(huán)境管理體系,力圖為自然風(fēng)景區(qū)管理者提供一個(gè)在理論上有指導(dǎo)意義和方法上可參照實(shí)施的模板,并為學(xué)術(shù)界提出一個(gè)新視角。
The three kinds of simulated point targets are designed and the rangeprofiles at aspect angle are computed . the radar target recognition method based on the optimal cluster centers is simulated and studied . it is discovered that the algorithm is effective when there are lots of training data , but noneffective when there are only a few training data 2 、對(duì)最優(yōu)聚類中心目標(biāo)識(shí)別法進(jìn)行仿真實(shí)驗(yàn)并研究其識(shí)別性能,實(shí)驗(yàn)結(jié)果表明該算法在大樣本訓(xùn)練數(shù)據(jù)時(shí)能得到較高識(shí)別率,是一種有效、可行的識(shí)別算法,但在少樣本訓(xùn)練數(shù)據(jù)時(shí),所得識(shí)別率急劇下降。