IQmodulaatio

IQ modulation is a technique used in digital communication systems to transmit information over a carrier wave. It is a form of amplitude modulation (AM) where the amplitude of the carrier wave is varied in proportion to the amplitude of the modulating signal. The modulating signal is typically a complex signal, consisting of two components: the in-phase (I) component and the quadrature (Q) component. These components are orthogonal to each other, meaning they are 90 degrees out of phase with respect to the carrier wave.

The process of IQ modulation involves combining the I and Q components to form a single complex signal. This complex signal is then used to modulate the amplitude of the carrier wave. The resulting modulated signal is a combination of the I and Q components, with the I component modulating the amplitude of the carrier wave in-phase and the Q component modulating the amplitude out-of-phase.

IQ modulation is widely used in modern communication systems, including wireless communication, broadcasting, and satellite communication. It allows for efficient transmission of digital information over a carrier wave, with the ability to modulate both the amplitude and phase of the carrier wave. This makes IQ modulation a versatile and powerful technique for digital communication.