次聲所產生的 的英文怎麼說
中文拼音 [cìshēngsuǒchǎnshēngde]
次聲所產生的
英文
infrasonic-
Because weather systems are generally large in size, many of them generate infra - sound
由於天氣系統的尺度通常較大,所以很多天氣現象都會產生人耳無法聽到的次聲。The wave length of infra - sound is quite long : typical infra - sound from the eye of a typhoon has a 4 to 8 second cycle 0. 25 to 0. 125 hz, meaning that its wavelength is a few kilo - metres long
次聲波的波長很長,例如臺臺風眼所產生的次聲振動周期約秒0 . 250 . 125赫茲,波長便可達數公里。( 4 ) the mathematical expressions of statistical properties of chaotic sequences generated by chebyshev - map are derived. their statistical properties are identical with those of white noise, and they are suit to be spread - spectrum address sequences. the appropriate number of chips contained in one information bit is gained for these chaotic spread - spectrum sequences. this provides the theoretical basis for chaotic sequences as address code
( 4 )首次推導了chebyshev混沌映射產生混沌擴頻序列統計特性的數學表達式,得出其與白噪聲的統計特性一致,適合作為擴頻地址碼,並導出了每個信息比特所含合適的切普數。
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