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

  1. 吱喳叫;唧唧叫;发啁啾声
    to make short high sounds
    1. 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

      1. VERB (鸟、昆虫)啾啾叫,发唧唧声
        When a bird or an insect such as a cricket or grasshopper chirps, it makes short high-pitched sounds.
        1. The crickets chirped faster and louder.
          蟋蟀叫得更欢了。
        2. Chirp is also a noun.
        3. The chirps of the small garden birds sounded distant.
          远处传来庭园小鸟的鸣啭。
      2. VERB (人)欢快地高声说话,叽叽喳喳
        You say that a person chirps when 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。

      双语例句

      1. The crickets chirped faster and louder.
        蟋蟀叫得更欢了。
      2. 'See you soon, I hope!' chirped my mother.
        “希望很快能再见!”我妈开心地大声说。
      3. The birds chirp merrily at the top of tree.
        鸟儿在枝头欢快地啾啾鸣唱。
      4. Birds chirp.
        鸟鸣。
      5. Sparrows chirp.
        麻雀吱吱喳喳叫。
      6. Birds do not chirp. Leaves do not rustle. Insects do not sing.
        鸟儿不在啁啾,树叶不再沙沙作响,昆虫也停止了欢唱。
      7. 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
      8. 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。
      9. Analysis of Ultra Wideband Transmission Performance System Based on Chirp Spread Spectrum
        基于Chirp扩频的超宽带信号传输性能分析
      10. Based on the fact that a chirp radar signal has a strong coupling between time and velocity, a deceptive jamming technique with shift frequency is proposed.
        本文基于线性调频脉压信号在时间和多卜勒频率间存在强耦合的事实,提出用移频干扰实现欺骗干扰的方法。
      11. Anti-noise Performance of Chirp Spread Spectrum System
        Chirp扩频通信系统抗噪声性能研究
      12. It uses Chirp Spread Spectrum technique to communicate and range.
        该方法利用线性调频扩频技术进行通信并实现测距;
      13. At night the crickets chirp in the woods.
        夜里蟋蟀在林中唧唧地叫。
      14. 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。
      15. Multi-component Chirp Signal Separating and Enhancing Based on SVD of Time-Frequency Space
        基于时频空间奇异值分解的多分量线性调频信号分离与增强
      16. A method for detecting the chirp of femtosecond optical pulse directly is proposed in this paper.
        介绍了一种能够直接检测飞秒脉冲啁啾大小的方法。
      17. Campus radio can not hear "chirp" sound, it seems a bit really not used to!
        听不到校园广播“叽叽喳喳”的声音,似乎还真的有点不习惯!
      18. 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。
      19. The negative chirp introduced by the fundamental wave can compensate partially dispersion and improve conversion efficiency.
        系统输出激光携带一定负啁啾可以补偿色散,提高三次谐波的转换效率。
      20. 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。
      21. But I did not chirp. I only wanted to see.
        但是我没有吭声,我只是想等着瞧。
      22. The frequency-stepped chirp signal is very common in ISAR imaging because of its peculiar characters.
        线性调频步进信号由于其独特的优点更是在ISAR成像中占据了重要地位。
      23. 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。
      24. Novel Synchronization Method for Chirp Communication System
        新颖的Chirp通信系统同步方法
      25. For the problem of parameter estimation of one dimensional and two dimensional chirp signal in additive colored Gaussian noise, a new method based on fourth-order cumulant is proposed.
        针对加性高斯有色噪声背景下的一维、二维线性调频信号的参量估计问题,引入高阶统计量,提出了一种基于四阶累积量的新方法。
      26. 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。
      27. 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。
      28. It is also shown that the initial pulse power and initial pulse chirp can impact the spectral shape and band width of the supercontinuum generation at anomalous dispersion region.
        初始激光脉冲的峰值功率和脉冲初始啁啾对光子晶体光纤反常色散区产生超连续谱形状和带宽是有影响的。
      29. The dim silence of my mind seems filled with crickets 'chirp& the grey twilight of sound.
        我的心在朦胧的沉默里,似乎充满了蟋蟀的鸣声--声音的灰暗的暮色。

      英英释义

      noun

      1. a sharp sound made by small birds or insects

        verb

        1. make high-pitched sounds
          1. the birds were chirping in the bushes

          Synonym:    peepcheepchirrup

        2. sing in modulation

            Synonym:    tweedle