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How do Decimators work?
Loosely speaking, “decimation” is the process of reducing the sampling rate. In practice, this usually implies lowpass-filtering a signal, then throwing away some of its samples. “Downsampling” is a more specific term which refers to just the process of throwing away samples, without the lowpass filtering operation.
What does a decimator do?
DECIMATOR DD-HX Overview The MD-HX features both an HDMI and a 3G-SDI input, and can cross convert either signal to the other. It features a built-in scaler and frame rate converter as well, allowing you to convert the input signal to your required output standard.
What is a video decimator?
The what: Decimator MD-HX Most notable feature is the ability to receive and output any video signal from 480i to 1080 at 60 progressive frames per second (full 3G). Retails for around $300.
How is multi rate processing used in signal processing?
Multi-rate processing finds use in signal processing systems where various sub-systems with differing sample or clock rates need to be interfaced together. At other times multi-rate processing is used to reduce computational overhead of a system. For example, an algorithm requires k operations to be completed per cycle.
What do you need to know about multicurrency processing?
This diagram shows a two-month accounting cycle and the various tasks involved in processing transactions in a multicurrency environment: You set up and control the exchange rates for various currencies. When you enter a transaction, the system retrieves the exchange rate or, if necessary, you can override the rate.
How is multi rate processing used to reduce computational overhead?
At other times multi-rate processing is used to reduce computational overhead of a system. For example, an algorithm requires k operations to be completed per cycle. By reducing the sample rate of a signal or system by a factor of M, the arithmetic bandwidth requirements are reduced from kf s operations to kf s /M operations per second.
Why are half band filters used in multirate signal processing?
Half-band filters are highly efficient for decimation and interpolation in multirate signal processing systems. The primary motivation for using halfband filters is the dramatically reduced computational complexity.