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AD9357 数据手册DataSheet 下载
... The AD9357 is a radio frequency (RF) transceiver with high performance dual receivers and transmitters, ideally suited for WiMAX, BWA, and LTE base stations and fixed CPEs. The RF MxFE® combines an RF front end with a mixed-signal baseband, enabling an easy-to-use JESD207 or ADI/Q® digital interface ...
... The AD9357 is a radio frequency (RF) transceiver with high performance dual receivers and transmitters, ideally suited for WiMAX, BWA, and LTE base stations and fixed CPEs. The RF MxFE® combines an RF front end with a mixed-signal baseband, enabling an easy-to-use JESD207 or ADI/Q® digital interface ...
PowerPoint Presentation - 12.215 Modern Navigation - GeoWeb
... History of EDM • Development of this type of technology started during World War II with the development of RADAR (Radio Detection and Ranging) • Radars returned the distance to an object (and later versions the speed of the object through the Doppler shift) by timing the length of time the from th ...
... History of EDM • Development of this type of technology started during World War II with the development of RADAR (Radio Detection and Ranging) • Radars returned the distance to an object (and later versions the speed of the object through the Doppler shift) by timing the length of time the from th ...
laboratory equipment - Electrical and Computer Engineering
... A more likely problem than electromagnetic interference in these experiments is the tendency to try to make measurements to more digits of significance than is necessary. In order to have a stable, non-flickering display of your voltage or current measurements, always select a scale or range so that ...
... A more likely problem than electromagnetic interference in these experiments is the tendency to try to make measurements to more digits of significance than is necessary. In order to have a stable, non-flickering display of your voltage or current measurements, always select a scale or range so that ...
Test - Yu Chun Keung Memorial College No. 2
... 3. A student wishes to construct a simple microammeter to measure small direct electric currents. A horse-shoe magnet with curved pole pieces is available and a light framework, or former, upon which to wind a coil. In addition there is a choice of two fibres, A and B, to suspend the coil, and a cho ...
... 3. A student wishes to construct a simple microammeter to measure small direct electric currents. A horse-shoe magnet with curved pole pieces is available and a light framework, or former, upon which to wind a coil. In addition there is a choice of two fibres, A and B, to suspend the coil, and a cho ...
RLC Series Circuit
... square. The time scale at the bottom of the oscilloscope screen shows the time value of one of these squares. Say it is 10µs. Then each tick mark is worth 2.0µs. If the distance between the two waveform peaks is 6.0 ticks, then this distance represents 6.0 x 2.0µs or 12µs. To turn this into radians ...
... square. The time scale at the bottom of the oscilloscope screen shows the time value of one of these squares. Say it is 10µs. Then each tick mark is worth 2.0µs. If the distance between the two waveform peaks is 6.0 ticks, then this distance represents 6.0 x 2.0µs or 12µs. To turn this into radians ...
RC and RL Circuits
... a square wave. How does the output of the differentiator circuit compare? Experiment 4, The RC low-pass filter: The low-pass filter is simply the integrator circuit above, but we replace the source by a sine oscillator so that we can measure the response at a single frequency. (The sine wave is the ...
... a square wave. How does the output of the differentiator circuit compare? Experiment 4, The RC low-pass filter: The low-pass filter is simply the integrator circuit above, but we replace the source by a sine oscillator so that we can measure the response at a single frequency. (The sine wave is the ...
High-Frequency Power Conversion for Machine Drive Applications
... • Compact, lightweight output filtering ...
... • Compact, lightweight output filtering ...
LECTURE 4
... instruments. provide a variety of output waveforms over a wide frequency range. The most common output waveforms are sine, square, triangular, ramp. and pulse. The frequency range generally extends from a fraction of a hertz to at least several hundred ...
... instruments. provide a variety of output waveforms over a wide frequency range. The most common output waveforms are sine, square, triangular, ramp. and pulse. The frequency range generally extends from a fraction of a hertz to at least several hundred ...
A NOVEL THREE-PHASE TO FIVE
... three-phase counterparts. The multiphase motors are invariably supplied by ac/dc/ac converters. This is a special transformer connection scheme to obtain a balanced five-phase supply with the input as balanced three phase. The fixed voltage and fixed frequency available grid supply can be transforme ...
... three-phase counterparts. The multiphase motors are invariably supplied by ac/dc/ac converters. This is a special transformer connection scheme to obtain a balanced five-phase supply with the input as balanced three phase. The fixed voltage and fixed frequency available grid supply can be transforme ...
Chirp spectrum
![](https://en.wikipedia.org/wiki/Special:FilePath/Spectra_of_Linear_Chirps_TB=25,100.png?width=300)
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.