查询词典 dab

Firstly it describes the development ,basic principle and application and propagation characteristic of mobile channel , then investigates the system structure of DAB transmitter and receiver separately and the key technology of realization of the digital audio broadcast system.And then discusses the system component of FFT －the demodulation module of OFDM .The 409- points FFT module employs a radix-4 decimation-in-frequency algorithm, includes arithmetic element , read and write address element ,twiddle factor element and control element , is realized by FPGA. In the end , the result is verified in the matlab .

首先概述了OFDM的发展、基本原理和应用以及移动信道的传播特性，接着分别研究了数字音频广播接收机和发射机的系统结构，以及数字音频广播系统实现的关键技术，然后详细论述了OFDM解调模块FFT的系统结构，主要研究了4096点FFT采用基－4按频率抽取实现的算法，整个FFT模块包括了运算单元、读写地址单元、旋转因子单元以及控制单元，并且在FPGA中进行了硬件实现，并在matlab环境下对结果进行了验证。

Because they ever assisted WorldDMB working party to define new DAB+ standard energetically, for initiative science and technology the test provides broadcast equipment and spot monitor, accordingly, we welcome RadioScape heartily to participate in this second test, and bestrew confidence to their professional competence.

因为他们曾大力帮助WorldDMB工作小组界说新的DAB+尺度，为初始科技测试供给广播行动措施和现场监控器，是以，咱们衷心接待RadioScape介入本次测试，而且对他们的专业能力充满抉择信念。

It's high quality wooden case has been designed to enhance its high sound quality, and the amplification uses Digital Sound Processing to make the most of DAB's broadcast quality, and is suitable for rooms both small and large.

优质的木质机壳有利于提升放音质量，其数字声音处理放大器可确保DAB广播质量，并使得该机无论在大的房间或者小的房间都十分的适合。

I'm going to dab you.

我会给你轻轻擦的。

Yes,we're a subsidiary of our parent company,DAB group.

是的，我们是DAB集团的子公司。

She is a dab hand at golf.

她是打高尔夫球的高手。

He is a dab hand at basketball .

他是个篮球健将。

And if I get a little hot, I can just dab myself with it.

如果我热了就可以拿它来吸汗

She is a dab hand at chopsticks.

她是个使筷子的能手。

She's a dab hand at cards.

她是个打牌能手。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。