The influence of growing atmosphere,thicknesses of buffer layer,different doping densities on the luminescence character of GaN films were studied by using SEM and Photoluminescence spectra.
通过扫描电子显微镜和室温光荧光谱仪研究了生长气氛、缓冲层厚度、掺杂浓度不同对GaN薄膜发光特性的影响。
special waveform signal generator
特殊波形信号发生器
Portable Signal Generator Based on Direct Digital Synthesis
基于DDS技术的便携式波形信号发生器
A Design of Function Generator with Multiple Signals Based on FPGA
基于FPGA的多波形信号发生器设计
automatic microwave signal generator
自动微波信号发生器
microwave sweep signal generator
微波扫频信号发生器
VHF square wave generator
甚高频方波信号发生器
Design of Free Waveform Signal Generator Based on PCI Bus;
基于PCI总线的任意波形信号发生器设计
Application of the field programmable logic array in arbitrary waves generator
基于FPGA器件的任意波信号发生器设计
The double channel arbitrary wave generator based on direct digital frequency synthesis is introduced.
介绍了基于直接数字频率合成技术的双通道任意波形信号发生器。
Design and Application of Constant-current Triangular-wave Signal Generator;
恒流三角波信号发生器的设计与应用
Design of RF sine wave generator based on AD9951
基于AD9951射频正弦波信号发生器的设计
Design of sine wave signal generator based on DDS technology
基于DDS技术正弦波信号发生器的设计
Morphological Filters in Feature Extraction for Rolling Bearing Defect Signals
形态滤波器用于滚动轴承故障信号的特征提取
Different waveform signals such as ramp function, step function, pulse function and exponential function are available by changing the parameters of the signal generator.
通过改变信号发生器的参数,可方便得到斜坡、阶跃、脉冲和e函数等各种不同波形的信号。
Implement of Signal Generator With Multi-carrier in Underwater Acoustic Communication Based on DDS
基于DDS的多载波水声通信信号发生器的实现
Gnter Blobel:the discoverer of intrinsic signals in proteins;
甘特.布洛贝尔:特殊信号的发现者
square-wave oscillator
方形波振荡器;矩形波发生器;矩形波发生器
beacon trigger generator
信标触发信号发生器