3. Providing the fishing vessel detection and classification 

 capability needed to support enforcement of the 200-nini 

 fishing zone will require the combined use of a number of 

 remote sensing techniques. It is probable that the needed 

 capability can best be provided by combining data derived 

 from some sensor/platform systems dedicated to fishing zone 

 enforcement with data derived from sensor/platform operated 

 (by the USCG or DoD) for other purposes. Therefore, the 

 development of improved capabilities for multisource data 

 correlation will be required. 



4. With the exception of magnetic techniques, all of the 

 remote sensing techniques considered in this survey have 

 some potential to perform functions useful in fishing zone 

 enforcement. However, no single technique is capable of 

 performing all of the necessary detection and classifica- 

 tion functions. 



5. Microwave radar operated from aircraft has by far the 

 greatest potential of all of the techniques examined for 

 the performance, in the near term, of the large area sur- 

 veillance required to detect fishing vessels of possible 

 interest to the fishing zone enforcement process. This 

 technique also has excellent potential for small area 

 surveillance of specific vessels or groups of vessels and 



as a means to bring sensors capable of classification within 

 usable range. However, unless it is coupled with the use 

 of beacons on foreign fishing vessels, microwave radar has 

 negligible classification potential. 



6. In the medium to far term, i.e., 1985 and beyond, satellite- 

 borne microwave radar has a potential to supplement or 

 supplant airborne radar for broad area surveillance, but 



it suffers from the same lack of inherent classification 

 capability. 



7. In certain circumstances, HF over-the-horizon radar and 

 acoustic techniques have potential to perform detection 

 and classification functions (see Volume Two), 



8. Electromagnetic intercept techniques (direction finding 

 and communications content analysis) offer potential for 

 wide area detection and limited classification functions. 

 However, since these techniques rely on cooperative trans- 

 missions from vessels of interest in a dense environment 

 of potentially masking emissions, they must be considered 

 as supplementary rather than primary means of performing 

 detection and classifications functions. 



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