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		| Paper: | 
		Theory of Correlation | 
	 
	
		| Volume: | 
		82, Very Long Baseline Interferometry and the VLBA | 
	 
	
		| Page: | 
		17 | 
	 
	
		| Authors: | 
		Romney, J. D. | 
	 
	
	
		| Abstract: | 
		Introduction; Interfaces; Background; Correlation/Coherence; Observations; Correlator Frontend; Delay compensation; Phase Compensation; Lag Correlator; Fractional-Sample Delay; Phase Rotator; Implementation; Spectral Response; FX Corelator; Fractional-Sample Delay; Phase Rotator Implementation; Spectral Response; Segmentation; Miscellaneous FX Topics; FX and Lag Correlator Intercomparison; Cost; Summary of Other Advantages | 
	 
	
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