The phase locked carrier tracking loop of receiver system completes the prevention of improper locking on the basis of carrier spectrum analysis using DDS frequency scaning.
介绍了在采用DDS扫频来完成航天器下行载波频谱分析的基础上,实现航天测控接收系统的锁相载波跟踪环的全自动防错锁功能,对提高锁相接收系统载波捕获的适应能力具有很高的应用价值。
Performance and integrated methods of INS-aided GPS tracking loops are studied on the base of modeling the Code-Lock Loop and the Phase-Lock Loop of GPS.
从频域角度对GPS码跟踪环及载波相位锁相环进行了数学建模,对INS辅助GPS码跟踪环、载波相位锁相环的方式进行了分析研究,指出这种组合方式的优点及缺陷,最后通过数学仿真验证了分析结果。
Scheme for Second Harmonic Block of Magnetizing Inrush Current in Transformers Based on Fuzzy Logic
基于模糊逻辑的变压器励磁涌流二次谐波闭锁方案
The experimental researches of fundamental wave injection locked2 nd harmonic Gunn oscillators in3 mm band are completed.
完成了三毫米波段第二次谐波振荡器的基波注入锁定实验。
Simulation study on the second harmonic ultrasound field of a Bessel Beam
Bessel波二次谐波声场的仿真研究
Real Time PLL-less Detection Method for Single-Phase Random Harmonic Current
无锁相环单相任意次谐波电流实时检测方法
Based on the nonlinear of synchronized oscillators, the expression of locking range for fundamental wave injection locked2 nd harmonic Gunn Oscillators is derived.
本文基于同步振荡器的非线性模型，导出了基波注入锁定二次谐波耿氏振荡器的锁定带宽表达式。
Research on Related Technologies of Methane Concentration Second Harmonic Detection;
瓦斯浓度二次谐波检测相关技术研究
94GHz SECOND-HARMONIC COMPLEX CAVITY GYROTRON WITH GRADUAL TRANSITIONS
94GHz二次谐波渐变复合腔回旋管
Study on 94 GHz Second-harmonic Wave Tapered Complex Cavity Gyrotron
94GHz二次谐波渐变复合腔回旋管研究
STUDIES ON 8mm SECOND HARMONIC GYROKLYSTRON AMPLIFIER
8mm二次谐波回旋速调放大器的研究
Generation of continuously tunable second harmonics around 295 nm
295毫微米附近连续可调谐二次谐波的产生
Quasi-Phase-Matched Second Harmonic Generation in GF(m, n) Optical Superlattices;
广义菲波那契超晶格二次谐波谱的理论研究
Second harmonic injection for restraining third-order intermodulation in traveling wave tube
行波管中二次谐波注入对三阶互调的抑制
Simulation of W-band second-harmonic complex cavity gyrotron with abrupt transiton
W波段二次谐波突变复合腔回旋管数值模拟
Second Harmonic Generation and Effect Factors in Silica Photonic Crystal Waveguide
全硅光子晶体波导中二次谐波产生及影响因素
Investigation of Second Order Nonlinear Optical Activity and Surface Second-Harmonic Generation in Chiral Media;
手性介质二阶非线性旋光与表面二次谐波研究
Nonlinear analysis of a Ka-band second harmonic distributedloss gyrotron traveling wave amplifier
Ka波段二次谐波损耗波导回旋行波管非线性分析
Temperature and wavelength tuning of second harmonic generation in a nonlinear photonic quasi-crystal
准晶非线性光子晶体中二次谐波波长和温度调谐的研究
Noise analysis of second-harmonic detection with tunable diode laser absorption spectroscopy
基于可调谐二极管激光吸收光谱学对二次谐波检测噪声分析研究