jitter
Sign in to saveIn electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal. In clock recovery applications it is called timing jitter. Jitter is a significant, and usually undesired, factor in the design of almost all communications links.
Article
19 sectionsContents
- Metrics
- Types
- Random jitter
- Deterministic jitter
- Total jitter
- Examples
- Sampling jitter
- Packet jitter in computer networks
- Video and image jitter
- Testing
- Mitigation
- Anti-jitter circuits
- Jitter buffers
- Dejitterizer
- Filtering and decomposition
- See also
- References
- Further reading
- External links
In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal. In clock recovery applications it is called timing jitter. Jitter is a significant, and usually undesired, factor in the design of almost all communications links.
Jitter can be quantified in the same terms as all time-varying signals, e.g., root mean square (RMS), or peak-to-peak displacement. Also, like other time-varying signals, jitter can be expressed in terms of spectral density.