Sampling rateNyquist frequencyWind analysisMissing wind dataIn wind measurement, the sampling rate is one of the most crucial factors in wind data acquisition to yield good accuracy for wind analysis and wind resource assessment. To avoid aliasing problems, wind speed and direction are measured at ...
Putting Undersampling to Work Aliasing To avoid aliasing, we know from the Nyquist criterion that we must digitize a signal at a sampling rate of at least twice the bandwidth of the signal. For 'baseband' signals with frequency components starting at DC and extending up to some maximum ...
The minimum sampling rate required to avoid aliasing, as we have seen, is twice the one-sided bandwidth of the modulated navigation signal. However, these signals typically carry different information in their I and Q phase components. Sometimes, these two signals in orthogonal phases, and carryin...
6.It is calculated as half of the value of the sampling rate.Passing this level causes aliasing distortion, or foldover. 它的计算方法是将采样率除以二,超过这个数值将会导致折叠失真,或称折叠。 7.This paper presents a sampling and collecting high speed cloud echo data method using a monolithic...
The sinc ringing frequency must be higher than twice that of the highest possible frequency we want to sample. Not meeting the requirements will cause distortions, called aliasing distortions. Let us examine sampling of a sine wave with frequency above half of the sampling rate. The red wave ...
sampled signal are called aliasing. In order to get rid of the aliasing effect, the ADC sampling rate must be greater than the highest frequency that needs to be preserved. An increase in the ADC sampling rate indicates that it is possible to record the higher frequencies without aliasing. ...
The present Application for Patent claims priority to Provisional Application No. 61/186,308 entitled “Apparatus and Method for Dynamic Scaling of ADC Sampling Rate to Avoid Receiver Interference” filed Jun. 11, 2009, and assigned to the assignee hereof and hereby expressly incorporated by referenc...
The ADS9110 features the new multiSPI digital interface, which reduces the SPI clock rate for the full sample rate. To optimize the performance of the 18-bit, 2-MSPS DAQ system, the input buffer, anti-aliasing filter, and reference driver must be designed in such a way that the ...
Before a continuous impulse response is sampled, a lowpass filter should be considered for eliminating all frequency components at half the sampling rate and above. In other words, the system itself should be ``lowpassed'' to avoid aliasing in many applications. (On the other hand, there are...
An alternative approach is adaptive super sampling using Poisson-disk sampling25, whereby samples are distributed randomly and some regions of the image may require extra sampling, to avoid aliasing. Similarly, a method proposed by Painter and Sloan26 also uses adaptive super sampling based on the ...