Local oscillator with non-harmonic ratio between oscillator and RF frequencies using wideband modulation spectral replicasYossi Tsfati
The design of a voltage controlled oscillator(VCO)focuses on non-linearity of F/V characteristic.Using a pre-weighted resistor network to adjust bias volta... X Chen,Z Chen,W Wang,... - 《Electronic Measurement Technology》 被引量: 0发表: 2018年 ...
The system has been tested for an IC 74LS04 oscillator at frequencies between 1 MHz and 25 MHz in the temperature range from 4.2 K to 400 K and in magnetic field from 0 to 1.4 T. The system performance is evaluated by measuring the NRRA in YBa2Cu3O7 (YBCO) superconducting sample and...
Non-contact heartbeat and respiration detector using capacitive sensor with Colpitts oscillator A capacitive sensor for detecting the heartbeat rate of a human without direct contact with the skin is investigated. Precordial movement changes the capac......
However, some current quantitive methods were emphasized on identifying the noise-contaminated sample responses in such system.As an illustrating example, the Duffing oscillator under parametrically harmonic and external bounded-noise excitations was studied in detail, from which one can learn nothing ...