To the development of high-speed rotor dynamic-balancing testing system based on DSP(digital signal processing),the way of picking-up rotator reference signal,testing rotator speed based on DSP and the design of software are introduced.
针对基于DSP(d igital signal processing)平台的高速转子动平衡测试系统的开发,介绍了一种基于DSP平台的转速基准信号测试方法.
(3) implementing 100 frequency doubling of reference signal through PLL circuit, use as the clock pulse of the switched-capacitor filter MF10ccn, so implementing self-adaptive band-pass optical filter according to the center frequency (rotor frequency).
(2) implementing 32 frequency doubling of reference signal through PLL circuit, use as the activation pulse of A/D acquisition, so implementing 32 point complete alternation acquisition of rotator’s vibration analog signal in different rotator speed.
The paper analyzes the problems existed in the world general method in which a infrared radiation signal of the Earth edge is used as reference signal for antenna system in satellite, and puts forward an Earth centre self-adaptive determination method in accordance with control theory and numeric calculation principle.
A Kind of adaptive filtering technique of the synchronizing datum signal was proposed in the paper, which is suitable for the harmonic detection of the complicated power supply system. The approach is unnecessary to have the phase locking loop, which especially fit the situation where the fundamental frequency is variable and the synchronizing datum signal is difficult to acquire. This method has been verified in the harmonic detection of an a.
A partly overlapped detection window structure is introduced in which the decided data frames are regarded as the reference signal so that energy and time resources in the reference frame are saved and full-rate data transmission is achieved.
A diagnostic procedure for the cases where determination of the reference signal is hindered was considered.
Feasibility of diagnosis without generating the reference signal was exemplified by the radio-frequency sensors.
A Robust Control Algorithm for Tracking the Reference Signal
Tracking of the reference signal for a linear system with unknown parameters is investigated.
The current source is connected to other circuits by means of two isolation ports: (1) a transformer coupling for the carrier frequency; and (2) an opto-coupler to transfer a phase reference signal obtained from current measurement.
A rf phase reference signal was provided to the oscilloscope by a directional coupler coupled to the rf generator.
RHex's running gaits are organized around the standard arthropod alternating tripod by means of a centralized phase reference signal.
The signal at this stationary photodetector is used as a phase reference signal.