chirp

音標(biāo)發(fā)音

The birds chirp merrily at the top of tree.
鳥兒在枝頭歡快地啾啾鳴唱.
Now it is clearing up, and a sparrow is beginning to chirp.
現(xiàn)在天就要晴了, 一只麻雀已開始喳喳地叫.
Birds had begun to chirp and twitter among the trees.
鳥兒開始在樹叢中啁啾鳴囀.
The birds chirp merrily at the top of tree.
鳥兒在枝頭歡快地啾啾鳴唱.
Now it is clearing up, and a sparrow is beginning to chirp.
現(xiàn)在天就要晴了, 一只麻雀已開始喳喳地叫.

When a bird or an insect such as a cricket or grasshopper chirps, it makes short, high-pitched sounds.
Chirp is also a noun.
chirping

啁啾
Notably, in our derivations, the effect of chirp fluctuations has been critically taken into account as well as the dispersive and nonlinear effects.
值得注意的是,在我們的推導(dǎo)過(guò)程中,啁啾波動(dòng)效應(yīng)連同色散和非線性效應(yīng)均得到充分的考慮。
線性調(diào)頻
In ideal circumstances, the back scattered echo signal of SAR is chirp signal. With synthetic aperture theory, high azimuth resolution imaging to distant targets can be attained.
理想情況下，SAR回波多普勒信號(hào)是線性調(diào)頻信號(hào)，采用合成孔徑原理提高方位向成像分辨率。
脈間步進(jìn)跳頻
There are several ways to achieve high range resolution. In this dissertation ,not only the theory analysis ,but also engineering application study of both a stepped frequency and an intra-pulse chirp and inter-pulse stepped frequency are completed.
利用合成寬帶技術(shù)來(lái)實(shí)現(xiàn)距離維的高分辨可以有多種方式,本文著重探討了步進(jìn)跳頻及脈內(nèi)調(diào)頻、脈間步進(jìn)跳頻技術(shù)的理論分析和實(shí)現(xiàn)研究。
載波頻率漸增式之線性調(diào)頻脈沖壓縮技術(shù)

啁啾
We designed and realized a high-speed sensor multiplexing network system based on the chirp fiber grating and edge filter technique.
3.提出并設(shè)計(jì)完成了基于啁啾光柵的高速傳感復(fù)用網(wǎng)絡(luò)系統(tǒng),結(jié)合邊沿濾波技術(shù),實(shí)現(xiàn)了傳感光纖光柵的高速波長(zhǎng)解調(diào)。文中分析了系統(tǒng)原理。
線性調(diào)頻
The fast Fourier transform(FFT) demodulation method conbined with chirp Z-translation(CZT) is adopted for Fabry-Pérot pressure sensors and its principle and error are analyzed theoretically.
將快速傅里葉變換(FFT)與線性調(diào)頻Z變換(CZT)聯(lián)合變換的方法應(yīng)用到法布里-珀羅(F-P)腔傳感器的解調(diào)中,從理論上分析了該方法的解調(diào)原理及誤差。
測(cè)繪科學(xué)技術(shù)
線性調(diào)頻脈沖