I have studied different papers related to Direction Finding (DF). However, what is really confusing is the terminologies of methods, techniques and algorithms. For example, we have amplitude, phase and amp-phase comparison methods. Once we look at the techniques there are several such as Doppler, Watson-Watt, Correlative Interferometry, etc. Similarly, there are MUSIC, ESPRIT and MLE algorithms.
Now I have really confused, as some papers compare Watson-Watt with MLE, others compare MUSIC with Correlative Interferometry. So is there any difference between these techniques and algorithms, or all of these are just similar alternative names.
Dear Umer Khalid all these methods are different, but they have a joint qualification as quasi-optimal methods. The optimal method is the Maximum Likelihood Method (MLM). Only ML makes it possible to reach Cramer-Rao Lower Boundary of dispersion of estimation parameters (including angles of arrival).
Article FIsher information matrix for models of systems based on fac...
Vadym Slyusar Thank you sir for your kind guidance. However, to further clarify, what I understood is that for example, I can use Watson Watt method along with MLM or MUSIC? Am I getting this right?
Dear Umer Khalid , in my opinion, the one MLM will be enough. But other qasi-optimal methods can be easier in real-time realization. Watson Watt method is very easy and non-optimal.
- Badges
- Science topic
- Similar topics
- Counseling Psychology
- Confusion