Analog signal processing block diagram. A systems behavior can be mathematically modeled and is represented in the time domain as ht and in the frequency domain as hs where s is a complex number in the form of saib or sajb in electrical engineering terms electrical engineers use j instead of i because current is represented by the variable i. Different source coding techniques are pcm pulse code modulation dmdelta modulation. Digital signal processing dsp is the use of digital processing such as by computers or more specialized digital signal processors to perform a wide variety of signal processing operations. The common term for individual digital signal processing blocks in this stage is the duc digital upconverter for t x path and the ddc digital downconverter for r x path.
In this diagram three basic signal processing operations have been included. Block diagram of a dsp system. Digital signal processing is the process of representing signals in a discrete mathematical sequence of numbers and analyzing modifying and extracting the information contained in the signal by carrying out algorithmic operations and processing on the signal. In source coding the encoder converts the digital signal generated at the source output into another signal in digital form.
Sample the sample block function is to sample the input analog signal at a specific time interval. The conversion from analog signal to a digital signal in an analog to digital converter is explained below using the block diagram given above. An exception is in a direct rf architecture where data converters sample rf signals directly so the analog if stage will be omitted and the signal chain will consist of the rf stage and digital if stage only.