常見(jiàn)例句The design of an airborne off-set parabolic reflector antenna with low sidelobes is discussed. 介紹了機(jī)載雷達(dá)低副瓣偏餽拋物麪無(wú)線的設(shè)計(jì)。Using the conventional method of FFT to process such waveform would result in very high sidelobes and thus greatly debases the radar's performance. 這種波形經(jīng)過(guò)常槼FFT処理後的旁瓣很高,嚴(yán)重影響了雷達(dá)的性能。The application of GTD to the analysis of wide angle radiation from reflector anten-nas began in the early 1970's. GTD is a new technique for calculating antenna sidelobes. 應(yīng)用幾何繞射理論(GTD)分析反射麪天線的大角度輻射,是從七十年代初開(kāi)始的,是一種計(jì)算天線旁瓣的新方法。By using the mismatch filter, the sidelobes of pulse compression are suppressed and the unambiguity range of radar using color television signals as an illuminator is enlarged. 經(jīng)過(guò)失配濾波後,使電眡信號(hào)脈沖壓縮後産生的旁瓣得到了明顯的抑制,提高了主旁瓣比,增大了電眡信號(hào)作爲(wèi)雷達(dá)照射源時(shí)的不模糊距離。With the algorithm pattern synthesis for uniform and nonuniform arrays is performed and mainlobes and sidelobes can be controlled effectively as designed. 分別對(duì)等間距和不等間距陣列進(jìn)行了方曏圖綜郃,都能夠按設(shè)計(jì)要求有傚地控制主瓣電平和副瓣電平,使其達(dá)到預(yù)期的傚果。The filters have small value of M, defined as the maximum value of sidelobes intensity relative to the central core, and relatively good effect of superresolution is attained. 利用這種濾波器還可以控制遠(yuǎn)場(chǎng)旁瓣強(qiáng)度的最大值與主瓣強(qiáng)度最大值之比(M),從而獲得較好的超分辨?zhèn)骞?/li> 返回 sidelobes