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- Study on GPS Dual Frequency Receiver Single-Stand Positioning Algorithm GPS双频接收机单点定位算法研究
- GPS Dual Frequency Receive 双频接收
- If this film series is used in He Ne laser, the dual frequency laser with 5MHz beat will be produced. 此膜系用于氦氖激光器 ,可制出频差为 5 MHz量级的双频激光器。
- Dual frequency and amplitudes vibration system may obtain optimal compaction for different quality and course materials. 振动系统：双频率和双振幅设置，保证了整机在压实不同性质、不同厚度的铺层时，均可达到最佳的压实效果；
- As what is concluded from the above that it is practicable to design the digital intermediate frequency receiver with wide band at present. 由此可见，在现有条件下实现宽带数字中频接收机是可行的。
- In order to improve target detection performance and anti-stealth ability for modern AEW radar, this paper presents a solution of dual frequency aperture sharing. 为了进一步提高现代机载预警 (AEW)雷达的目标检测及反隐身能力 ,本文提出双频带孔径共用的实现策略。
- The method of measuring deep soil moisture by VHF/UHF dual frequency multiple polarization Synthetic Aperture Radar (SAR) consisting of vector network analyzer is proposed. 该文提出了利用由矢量网络分析仪构造的VHF/UHF双频、多极化合成孔径雷达(SAR)测量深层土壤湿度的方法；
- In order to study the optical feedback characteristics at the dual frequency laser, a birefringent external cavity was studied throughboth theoretical analysis and experiments. 摘要为了研究双频激光器的光回馈特性，采用双折射外腔光回馈的方法，进行了理论分析和实验验证，取得了双频激光器中条纹倍频现象的数据。
- The algorithm was presented as a mathematical description independent of any applications and was used to design a dual frequency grating projection profilometry system. 用独立于任何实际应用的一般形式给出了该算法的数学表述 ,并以此为基础设计了一套双频光栅投影轮廓测量系统。
- This paper introduces the key specifications and its architecture of AD8369, and designs a full digital automatic gain control(DAGC) system for digital intermediate frequency receiver, and provides its control circuit and algorithm. 介绍了数字可变增益放大器(DVGA)AD8369的电路结构及其关键技术指标,并用该芯片为数字中频接收机设计了全数字自动增益控制(DAGC)系统,给出了其控制回路及其实现算法。
- The key component of the system is a digital intermediate frequency receiver employing DSP and FPGA to obtain amplitude and phase data in real-time, which improves measurement speed and flexibility. 该系统的关键部件是一个数字中频接收机,利用DSP和FPGA实时获取幅度和相位数据,从而提高了测量速度和灵活性。
- This paper introduces a new method for both producing and controlling the frequency difference of a dual frequency laser by using an electromagnetical force which is applied onto the window plate. 提出和研究一种新的方法，即利用电磁铁的电磁力去产生和控制双频激光器的频差。
- very high frequency receiver testing generator 甚高频接收测试发生器
- Research on Dual Frequency Metal Detector 双频金属探测器的研究
- zero intermediate frequency receiver 零中频接收机
- digital -intermediate frequency receiver 数字中频接收机
- The road opened out into a dual carriageway. 这条路已扩展成了复式车行道。
- dual frequency GPS rapid positioning 双频GPS快速定位
- digital intermediate frequency receiver 数字中频接收机
- dual frequency induced polarization 双频激电
