nWP006 RF Performance Test Guidelines
... If the DUT can operate over a range of frequencies, called a frequency band (for example, ~80 MHz in the case of a 2.4GHz ISM band radio), it is important that you measure the output power at different frequencies across the DUT’s frequency band. This will show you the overall output power performan ...
... If the DUT can operate over a range of frequencies, called a frequency band (for example, ~80 MHz in the case of a 2.4GHz ISM band radio), it is important that you measure the output power at different frequencies across the DUT’s frequency band. This will show you the overall output power performan ...
Techniques for In-Band Phase Noise Reduction in Delta
... we should note that the error variance, , is the expected value of all of the individual errors squared, which in this particular . As always, the expected case is the expected value of value can be evaluated using the integral on the right-hand side of (8). From (8), we can see that the rms error i ...
... we should note that the error variance, , is the expected value of all of the individual errors squared, which in this particular . As always, the expected case is the expected value of value can be evaluated using the integral on the right-hand side of (8). From (8), we can see that the rms error i ...
ECE490_07
... Explain the features and their operation that a high-quality receiver may include as compared to a basic receiver Analyze and explain the relationships among noise, receiver sensitivity, dynamic range, and the third-order intercept Troubleshoot and amplifier suspected of excessive IMD Explain the op ...
... Explain the features and their operation that a high-quality receiver may include as compared to a basic receiver Analyze and explain the relationships among noise, receiver sensitivity, dynamic range, and the third-order intercept Troubleshoot and amplifier suspected of excessive IMD Explain the op ...
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.