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- out band signaling 带外信号方式
- A complete line of conventional signaling equipment. 全系列常规信号设备。
- Such system is used to digitize high-speed, wide band signal. 该系统适用于对高速、宽带的瞬态信号进行数字化处理。
- SPI register configuration platform achieve RS232 interface for data transmission equipment to the SPI bus to visit and control register of the base band signal processor. SPI寄存器配置平台实现了RS232接口设备到SPI总线的数据传输,从而完成对OFDM基带信号处理器中状态寄存器的访问与控制。
- out band signalling 带外信号方式
- The out band rejection and the trap wave point of SAWF are up to above -45 dB and -55 dB respectively,the rectangular factor is also greatly improved. 这些措施使声表面波滤波器的带外抑制提高到－45dB以上，陷波点－55dB以上，矩形系数也大为改善
- This paper designed a programmable base band signal generator of variable bandwidth based on the combination of FPGA and DSS using large-seale integrated circuits. 利用大规模的集成电路技术，基于FPGA和DSS相结合，设计一种带宽可转换的，具有可编程的基带信号产生器。
- In this paper, by using DFT filter bank and ZFFT, we present an algorithm of spectrum analysis for the wide band signal. 本文利用DFT滤波器组、FFT,提出了一种宽带信号的实时谱分析方法。
- Meantime,we manufacture all kinds or lndicating lights equipment,signal equipment,life raft and some fittings of watercraft. 同时还生产各种救生设备示位灯、信号设备、救生筏具及其它船舶配件。
- The spectrum of amplitude modulated signal are two half magnitude spectrums of base band signal positive and negative shifted by a carrier or R. 调幅讯号之频谱为一半强度基频讯号之频谱分别正负位移一射频或载波之频率。
- He left when the band began to beat out pop music. 乐队一奏起流行音乐他就走了。
- Urban mass transit (UMT) quasi-moving block CAD software is a block design CAD which can dispose _ signal equipment automatically based on the quasi-moving principle. 城市轨道交通准移动闭塞CAD软件是针对城市轨道交通准移动闭塞制式下的闭塞信号设备布置辅助设计软件。
- After the PPM modulation ultra-wide band signal after the Gauss white noise channel system simulation, and give the time domain and the frequency range chart! 经PPM调制的超宽带信号经高斯白噪声信道的系统仿真,给出了时域和频域图
- A model of DPSK modulation and demodulation system with base band signal are simulated on the basis of a FPGA development platform Quartus II 3.0 developed by Altera. 用Altera公司的FPGA开发平台QuartusII3.;0实现了一个对基带信号的DPSK调制解调系统模型的仿真。
- The spectrum of amplitude modulated signal are two half magnitude spectrums of base band signal positive and negative shifted by a carrier or R.F. frequency. 调幅讯号之频谱为一半强度基频讯号之频谱分别正负位移一射频或载波之频率。
- The jazz band gave out with quick rhythms. 爵士乐队狂热地奏出了快速的旋律。
- It is absurd to go out in such terrible weather. 在这麽恶劣的天气里出去太荒唐。
- Writer discusses the management system for station signal equipment based on GIS，and provides the system of fault diagnosis and information positioning for station signal equipment . 作者设计了基于GIS的车站信号设备管理系统，并在此基础上提出了信号设备的故障诊断与信息定位系统。
- He took out a fire insurance policy for his house. 他为自己的房子办理了一份火险保险单。
- He's been in and out of prison for years. 他多年来屡次进出监狱。
