In the process of acquisition,a fast frequency identification method was used to realize the hybrid DS/FH systems fast acquisition.
同步包括捕获和跟踪两个阶段,在捕获阶段,利用快速频率识别方法对接收信号频率进行估计,实现混合系统的快速捕获;在跟踪阶段,根据获得的接收信号频率信息,等待在某一个特定的频率,通过直扩信号的捕获、跟踪、解调过程,获取接收信号的跳频同步信息,从而实现混合系统的快速同步。
Instantaneous frequency identification of a structure based on complex wavelet transform
基于复小波变换的结构瞬时频率识别
Design of Radiation-Hardened High Voltage Power Supply with Frequency Discriminator
一种带频率识别功能的抗辐照高压电源设计
Effects of Spatial Frequency , Strokes, and Word Frequency on Chinese Character Recognition
空间频率、笔画数及字频对汉字识别的影响
Research on the discriminating value of different frequency formants in speaker recognition
不同频率共振峰在话者识别中的鉴别价值
The results showed that the token frequency of phonetic component showed facilitating effect in character recognitian;
在整字识别中,声旁的使用频率有易化作用;
AUTOMATIC IDENTIFICATION OF A. C. COUNTING CAB SIGNALS OF DIFFERENT FREQUENCIES
不同频率交流计数机车信号的自动识别
Study on Damage Identification for Single Pole Platform Structures Based on Frequency and Neural Network;
基于频率和神经元的单立柱平台损伤识别研究
A Study on the Method Based on Frequency of Damage Identification of Free-Spring Bar;
基于频率的自由—弹性支承杆损伤识别方法研究
The Research on Gait Recognition by Integrating Spatial Features and Frequency Features;
空间特征与频率特征相结合的步态识别研究
THE EFFECT OF INITIAL WORD FREQUENCY AND LAST WORD FREQUENCY OF CHINESE IDIOMS ON THE HIGHLY FAMILIAR IDIOM RECOGNITION;
首词和尾词频率对高熟悉度成语识别的影响
The Effect of Age of Word Acquisition and Frequency on the Identification of Chinese Double-Character Words;
词汇习得年龄和频率对词汇识别的影响
Structural Damage Detection Method Based on Natural Frequency and Mode Shape
基于频率及振型参数的结构损伤识别方法
Structural Damage Identification Based on SFRF Curvature
基于应变频响函数曲率的结构损伤识别
Research on PCM/FM Modulation Identification Based on Instantaneous Frequency Histogram
基于瞬时频率直方图的PCM/FM信号调制识别研究
Failure Detection for Cast Steel Pedestal Based on Frequency
一种基于频率变化的铸钢支座故障识别方法
Individual identification of FSK signals based on fine feature analysis of instantaneous frequency
基于瞬时频率细微特征分析的FSK信号个体识别
Initially RFID tags worked only at frequency bands of13.56 megahertz or lower.
早期的射频识别标签只能在13.56百万赫兹或更低的频率下作用。
On the Stroke Effect,Word Frequency Effect and Morpheme Frequency Effect in the Recognition of Chinese One-character Word by Foreign Student;
留学生汉语单字词识别的笔画数效应、词频效应和词素频率效应
