AMICSA2016_moon
... reference signal to generate a number of LO signals will make the spacecraft higher in DC power, size and mass. In order to provide a lower spacecraft mass, size, and DC power, the LO signal generation must be accomplished by miniaturized digital integrated frequency synthesizers based on phase lock ...
... reference signal to generate a number of LO signals will make the spacecraft higher in DC power, size and mass. In order to provide a lower spacecraft mass, size, and DC power, the LO signal generation must be accomplished by miniaturized digital integrated frequency synthesizers based on phase lock ...
RPI: The Radio Plasma Imager investigation on the IMAGE spacecraft
... analysis on all signals as to separate time-coincident echoes by making use of the direction-dependent Doppler shifts. It is very unlikely that echoes from different directions which happen to have the same propagation delay also have the same Doppler shift d = k·(v-vS)/ [Reinisch et al., 1987], wh ...
... analysis on all signals as to separate time-coincident echoes by making use of the direction-dependent Doppler shifts. It is very unlikely that echoes from different directions which happen to have the same propagation delay also have the same Doppler shift d = k·(v-vS)/ [Reinisch et al., 1987], wh ...
Physical Layer
... • The radio, microwave, infrared, and visible portion of the spectrum can all be used for transmitting info by modulating the amplitude, frequency, or phase of the waves. • The FCC allocates spectrum for AM and FM, TV, Cellular Phones, police, Military, Telephone Companies, Government, etc. ...
... • The radio, microwave, infrared, and visible portion of the spectrum can all be used for transmitting info by modulating the amplitude, frequency, or phase of the waves. • The FCC allocates spectrum for AM and FM, TV, Cellular Phones, police, Military, Telephone Companies, Government, etc. ...
LTC1066-1 - 14-Bit DC Accurate Clock
... negative supply value respectively. Low noise linear supplies are recommended. Switching power supplies are not recommended as they will lower the filter dynamic range. When the LTC1066-1 is powered up with dual supplies and, if V + is applied prior to a floating V –, connect a signal diode (1N4148) ...
... negative supply value respectively. Low noise linear supplies are recommended. Switching power supplies are not recommended as they will lower the filter dynamic range. When the LTC1066-1 is powered up with dual supplies and, if V + is applied prior to a floating V –, connect a signal diode (1N4148) ...
Abir- 07210036, Sarker 08110070
... displacement sensor, which can measure the amplitude and frequency of the vibration . The proposed device consists of a fiber optic transmitter, photodiode detector, fiber optic proves, digital oscilloscope , POF fiber, an elastic cantilever & power source. Light from the fiber optic transmitter is ...
... displacement sensor, which can measure the amplitude and frequency of the vibration . The proposed device consists of a fiber optic transmitter, photodiode detector, fiber optic proves, digital oscilloscope , POF fiber, an elastic cantilever & power source. Light from the fiber optic transmitter is ...
LF2418891896
... operation is true analog multiplication and the output is a function of input signal amplitudes, frequencies and phase relationships. The multiplication of two input signals makes analog PLL well suited for much special purpose application. The multiplier type PD can work well up to the microwave fr ...
... operation is true analog multiplication and the output is a function of input signal amplitudes, frequencies and phase relationships. The multiplication of two input signals makes analog PLL well suited for much special purpose application. The multiplier type PD can work well up to the microwave fr ...
Crystal Oscillator Information
... TCXOs may exhibit temporary frequency drift when the ambient temperature changes if the thermistor network does not have the same thermal time-constant as the crystal. Adjusting the mechanical tuning (to compensate for aging) may change the electrical tuning sensitivity in some designs causing the t ...
... TCXOs may exhibit temporary frequency drift when the ambient temperature changes if the thermistor network does not have the same thermal time-constant as the crystal. Adjusting the mechanical tuning (to compensate for aging) may change the electrical tuning sensitivity in some designs causing the t ...
Comparitive Analysis of Cascaded H-Bridge Multilevel Inverter with
... transformers . In Multilevel inverters semiconductor switches must be turned ON & OFF to synthesize output AC waveform from a DC input waveform such that desired fundamental is obtained with minimum harmonic distortion. Comparing with two level inverter topologies at the same power ratings, multilev ...
... transformers . In Multilevel inverters semiconductor switches must be turned ON & OFF to synthesize output AC waveform from a DC input waveform such that desired fundamental is obtained with minimum harmonic distortion. Comparing with two level inverter topologies at the same power ratings, multilev ...
Chirp spectrum
The spectrum of a chirp pulse describes its characteristics in terms of its frequency components. This frequency-domain representation is an alternative to the more familiar time-domain waveform, and the two versions are mathematically related by the Fourier transform. The spectrum is of particular interest when pulses are subject to signal processing. For example, when a chirp pulse is compressed by its matched filter, the resulting waveform contains not only a main narrow pulse but, also, a variety of unwanted artifacts many of which are directly attributable to features in the chirp's spectral characteristics. The simplest way to derive the spectrum of a chirp, now computers are widely available, is to sample the time-domain waveform at a frequency well above the Nyquist limit and call up an FFT algorithm to obtain the desired result. As this approach was not an option for the early designers, they resorted to analytic analysis, where possible, or to graphical or approximation methods, otherwise. These early methods still remain helpful, however, as they give additional insight into the behavior and properties of chirps.