Howtosignalprocessing
What is I & Q data?
I/Q data is an alternative method of describing the magnitude and phase data of a signal. A sinusoidal wave can be written in polar coordinate form as shown in the following equation: f(t) = Acos(2 ft + φ) where. A is the amplitude.
What is I and Q in RF?
By convention, the I signal is a cosine waveform, and the Q signal is a sine waveform. As you know, a sine wave (without any additional phase) is shifted by 90° relative to a cosine wave. Another way to express this is that the sine and cosine waves are in quadrature.
What is I and Q data from radar?
Here you find a simple explanation. Two signals where the phase is 90 degrees apart are called "in quadrature". Cosine wave and a sine wave are quadrature wave forms. The amplitude of the cosine wave we is called I or the In-phase signal. The amplitude of the quadrature waveform or the sine waveform is Q.
What is IQ format?
An iq-tar file contains I/Q data in binary format together with meta information that describes the nature and the source of data, e.g. the sample rate. The objective of the iq-tar file format is to separate I/Q data from the meta information while still having both inside one file.
