1.
high precision LF signal generator
高精度低频信号发生器
2.
General purpose specification of low frequency signal generators
GB/T12181-1990低频信号发生器通用技术条件
3.
Test methods for general purpose low frequency signal generators
GB/T12180-1990低频信号发生器通用测试方法
4.
Design of an intermediate-power and lower-frequency supply
基于DDS的中功率低频信号源的设计
5.
Research of the Low-frequency Signal Detection in Passive Sonar System;
被动声纳系统中低频信号的检测技术研究
6.
The Research and Design of Low-Frequency Signal Processing System Based on DSP;
基于DSP低频信号处理系统的研究与设计
7.
Analysis and Discussion on the Features of Practical Operational Amplifier with Low Frequency Signal;
对低频信号下实际运放运算特性的分析与讨论
8.
photoaudio generator
低频光电信号发生器
9.
ringdown signaling
低频监察信号 -用低频电流传送监察信号
10.
Instantaneous frequency estimation of frequency modulation signals in low signal noise ratio
低信噪比情况下调频信号的瞬时频率估计
11.
Digital Signal Generator of Low Frequency with Phase Shift
低频数字式移相信号发生器的设计
12.
CTCSS does not alleviate RF interference.
CTCSS并不会降低无线电射频信号的干涉。
13.
A Design of CMOS Amplifier used in low frequency small signal testing;
基于低频小信号检测的 CMOS 放大器设计
14.
Zero-error Low Frequency Three-phase Phase Shift Signal Generator
零误差低频程控三相相移信号发生器
15.
Medium and low frequency underwater acoustic signals detecting with laser interferometry
中低频水下声信号的激光干涉法探测
16.
APPLICATION OF ZOOM FFT TECHNIQUE TO DETECTING EM SIGNAL OF SLF/ELF
频率细化技术在超低频/极低频电磁信号检测中的应用
17.
The lower the tone frequency the less audible it tends to be.
当然，这些音频信号的频率越低，越难被听到。
18.
Research and Realization of a Method to Measure Frequency for High Frequency Signal Dependent on Low Sample Rate
低采样率下高频信号的测频方法的研究与实现