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- In this paper, a new structure of Coordinate Convert Module in Digital Down Converter is presented which is based on CORDIC algorithm. 本文介绍了一种基于CORDIC算法的数字下变频器(DDC)中坐标变换模块的结构以及该结构的ASIC实现。
- The receiver unit mainly consisted of the digital down converter, matched filter, differential demodulator and AFC module. 接收子系统包括下变频模块、匹配滤波器模块、差分解调模块、自动频率控制模块。 论文列出了部分模块的VHDL程序,还给出了各个模块的功能和时序仿真。
- On the base of these,the paper analyzes applications of digital down converting in the HSP50214B programmable downconverter. 在此基础上,提出了数字下变频技术在可编程数字下变频器HSP50214B中的应用方案。
- Have a glass of beer to rinse your dinner down. 喝杯啤酒把你吃的晚饭冲下去。
- The machine must break down at this busy hour. 正忙的时候,机器偏偏又坏了。
- The old man stared the uninvited guest up and down. 老人把不速之客上下打量了一番。
- The design of hardware module includes A/D converter, DDC (Digital Down Converter) and DSP. The design and application of AD6640 and AD6624 are fully discussed in this part. 模块的硬件设计主要包括:A/D转换器、数字下变频器(DDC)以及DSP,详尽讨论了A/D器件AD6640和DDC器件AD6624的设计和应用;
- The broad-band signal demodulated into base-band signal with receiver by twice frequency conversion and down convertion of DDC orthogonal digital and got the orthogonal signals. 接收端经两次频率转换和中频采样与 DDC 正交数字下变频,把带宽信号解调到基带信号,得到相互正交信号。
- The RF down converter used with the direct digital synthesizer uncouples tuning speed from phase noise creating the fastest and highest performance tuner on the market. 由于采用了直接数字合成去耦调谐速度的射频下变频,避免了相位噪声,也创造了市场上最快的速度和最高的性能。
- The Cascade integrator comb filter (CIC) has played an important role as an interpolating and low pass filter in the Digital Down Converter (DDC) of software radio. 在软件无线电的下变频模块中,级联梳状积分滤波器有着重要的应用,其主要作用是信号的抽取与低通滤波。
- He let himself down slowly by means of a tope. 他借助一根绳子慢慢地下来了。
- The deer was peppered with shot all down one side. 那只死鹿的半边身子都被子弹击中。
- The maid did down the walls with a duster. 女佣用掸帚由上而下地刷除四壁上的尘垢。
- The old barn we bought to convert into flats was practically tumbling down. 那个旧谷仓我们买下想改建住房的,实际上已经快塌了。
- Bind down the ropes around the load on the lorry. 把绕在卡车上货物外面的绳子扎紧。
- He was not a man to sit down with affront. 他并不是一个可以忍受当众侮辱的人。
- One of the fishing boats sank down astern of us. 有一艘渔船在我们后面沉没了。
- He slicks his hair down with oil every day. 他每天搽油把头梳得光溜溜的。
- The chair sagged down under the fat man's weight. 椅子经这胖人一坐便压弯了。
- Our torpedo boats bore down on the enemy cruiser. 我方面鱼雷艇向敌巡洋舰冲去。