We herein formulate the concept of a generalized lock-in amplifier for the precision measurement of high frequency signals based on digital cavities. Accurate measurement of signals higher than 200 MHz using the generalized lock-in is demonstrated. The technique is compared with a traditional lock-in and its advantages and limitations are discussed. We also briefly point out how the generalized lock-in can be used for precision measurement of giga-hertz signals by using parallel processing of the digitized signals.
|Tidskrift||Review of Scientific Instruments|
|Status||Published - 2013|
Bibliografisk informationThe information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Electrical and information technology (011041010), Chemical Physics (S) (011001060)
- Elektroteknik och elektronik
- Atom- och molekylfysik och optik