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underwater

  • Challenges Building Scalable and Distributed underwater Wireless Sensor Networks (UWSNs) for Aquatic

    Challenges Building Scalable and Distributed underwater Wireless Sensor Networks (UWSNs) for Aquatic Applications.pdf

    標(biāo)簽： Distributed Challenges underwater Building

    上傳時(shí)間： 2014-11-29

    上傳用戶：TF2015

  • underwater acoustic sensor networks-research challenges.pdf

    underwater acoustic sensor networks-research challenges.pdf

    標(biāo)簽： networks-research underwater challenges acoustic

    上傳時(shí)間： 2014-08-31

    上傳用戶：dapangxie

  • MFSK modulation is for underwater acoustic communication

    MFSK modulation is for underwater acoustic communication

    標(biāo)簽： communication modulation underwater acoustic

    上傳時(shí)間： 2016-02-20

    上傳用戶：CHINA526

  • 水聲信號功率放大器的設(shè)計(jì)與實(shí)現(xiàn)

    設(shè)計(jì)了水聲信號發(fā)生系統(tǒng)中的功率放大電路，可將前級電路產(chǎn)生的方波信號轉(zhuǎn)換為正弦信號，同時(shí)進(jìn)行濾波、功率放大，使其滿足換能器對輸入信號的要求。該電路以單片機(jī)AT89C52，集成6階巴特沃思低通濾波芯片MF6以及大功率運(yùn)算放大器LM12為核心，通過標(biāo)準(zhǔn)RS232接口與PC進(jìn)行通信，實(shí)現(xiàn)信號增益的程控調(diào)節(jié)，對干擾信號具有良好的抑制作用。經(jīng)調(diào)試該電路工作穩(wěn)定正常，輸出波形無失真，在輸出功率以及放大增益、波紋系數(shù)等方面均滿足設(shè)計(jì)要求。    This paper presented a design and implementation of underwater acoustic power amplifer. This circuit converted the rectangle signal generated by frontend circuit into the sine signal， then filtered and power amplification， it meets the requirements of the transducer.Included AT89C52， 6th order Butterworth filter MF6， hipower amplififier LM12.Communication with PC through the RS232 port. The signal gain is adjustable and could be remote controlled. It has a good inhibitory effect on the interference signal. After debugged， this circuit works stable， the output waveform has no distortion， it meets the design requirement in outprt power， amplifier gain and ripple factor.

    標(biāo)簽： 水聲信號 功率放大器

    上傳時(shí)間： 2013-11-20

    上傳用戶：qwe1234

  • 基于EZ-USB的數(shù)據(jù)傳輸接口設(shè)計(jì)

    利用EZ-USB接口芯片AN2131Q實(shí)現(xiàn)了基于TMS320C5409的水聲信號采集及混沌特性研究系統(tǒng)中的高速數(shù)據(jù)通信，提出了一種采用FIFO緩存芯片實(shí)現(xiàn)AN2131Q與TMS320C5409的連接方法，深入研究了EZ-USB序列接口芯片的固件、設(shè)備驅(qū)動(dòng)和用戶程序開發(fā)過程。關(guān)鍵詞：AN2131Q; TMS320C5409; IDT72V02；數(shù)據(jù)通信ABSTRACT: Using AN2131Q as the control chip, the communication between DSP and PC in the underwater acoustic signal acquisition and chaotic characteristics study system is realized. The method is proposed that using FIFO to realize the connectivity between AN2131Q and TMS320C5409. The development of programming Firmware、device driver and user application are thoroughly researched.Key words: AN2131Q; TMS320C5409; IDT72V02; data communication

    標(biāo)簽： EZ-USB 數(shù)據(jù)傳輸 接口設(shè)計(jì)

    上傳時(shí)間： 2014-04-03

    上傳用戶：hahayou

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