chirp

英 [tʃɜːp]

美 [tʃɜːrp]

v.  吱喳叫; 唧唧叫; 发啁啾声; 轻松愉快地讲(话); 嘁嘁喳喳地说

过去式：chirped　现在分词：chirping　第三人称单数：chirps　复数：chirps　过去分词：chirped　

TOEFLGRETEM8

BNC.32990 / COCA.14222

牛津词典

verb

• 吱喳叫；唧唧叫；发啁啾声
  to make short high sounds
• 轻松愉快地讲（话）；嘁嘁喳喳地说
  to speak in a lively and cheerful way

柯林斯词典

• VERB (鸟、昆虫)啾啾叫，发唧唧声
  When a bird or an insect such as a cricket or grasshopperchirps, it makes short high-pitched sounds.
  1. The crickets chirped faster and louder.
     蟋蟀叫得更欢了。
  2. Chirpis also a noun.
     
  3. The chirps of the small garden birds sounded distant.
     远处传来庭园小鸟的鸣啭。
• VERB （人）欢快地高声说话，叽叽喳喳
  You say that a personchirpswhen they say something in a cheerful, high-pitched voice.
  1. 'See you soon, I hope!' chirped my mother.
     “希望很快能再见！”我妈开心地大声说。

英英释义

noun

• a sharp sound made by small birds or insects

verb

• make high-pitched sounds
  1. the birds were chirping in the bushes
  Synonym:peepcheepchirrup
• sing in modulation
  Synonym:tweedle

双语例句

• Analysis of Micro-Doppler Effect in Frequency-Stepped Chirp Signal Radar
  线性调频步进信号雷达目标微多普勒效应分析
• The relation between the chirp in phase of soliton pulse and soliton propagation is discussed in this paper.
  讨论了光孤子传输中，由脉冲包络的相位变化产生的啁啾与孤子传输的关系。
• Low chirp of femtosecond laser pulses can be determined accurately using the MOSAIC.
  MOSAIC能够精确地测量飞秒激光脉冲的微小啁啾量。
• According to the features of DSP, this paper presents a spectrum zooming analysis method based on Chirp Z Transform ( CZT).
  基于DSP信号处理的特点，给出了一种基于线性调频Z变换（CZT）的频谱细化实现方案。
• Raman amplification can compensate the fiber loss, does not change the temporal waveform and has little influence on the linear chirp of the soliton.
  研究表明，拉曼放大能够补偿光纤损耗，但不改变孤子脉冲的时域波形，对孤子脉冲的啁啾影响不大。
• 'See you soon, I hope!' chirped my mother.
  “希望很快能再见！”我妈开心地大声说。
• This paper analyses the problem of the quadratic phase for multiple frequency ranging based on chirp signal, and the method of the phase elimination is proposed.
  分析了基于线性调频信号多频测距时出现的二次相位问题，提出了利用测速系统速度信息进行相位消除的方法。
• A bipolar chirped optical code division multiple access ( OCDMA) schemes, based on a linear chirp fiber Bragg grating and fiber delay line, is proposed in this paper.
  提出了一种基于线性啁啾布拉格光纤光栅和光纤延迟线的正负啁啾编码光码分多址（OCDMA）方案。
• Theoretical analysis and numerical simulation of compression to negative chirp pulse based on dispersion-shift fiber ( DSF) using distributed Raman Amplification.
  该文对分布式拉曼放大的色散位移光纤（DSF）负啁啾光脉冲压缩进行了理论分析和数值模拟。
• Anti-noise Performance of Chirp Spread Spectrum System
  Chirp扩频通信系统抗噪声性能研究