Sacrifice spatial bandwidth local oscillator not directly available for demodulation Memory needed object cannot change between scans (b) = 0 or π: phases control only sign of synthesis through cos magnitude controlled totally by | p 1( x) p 2( x)|. (a) | p 1( x) p 2( x)| = constant: all control residues in α cos + β sin (c) | p 1( x)| and | p 2( x)| can be varied jointly so long as the product | p 1( x) p 2( x)| remains unchanged. (b) θ 1( x) and θ 2( x) can be varied jointly so long as the difference remains unchanged. (a) Re and Im can be varied jointly so long as the weighted sum remains unchanged. (b) | p 1( x)| and | p 2( x)| can be varied jointly so long as the weighted sum remains unchanged.īasic form: F s( x) = Re + Im = | p 1( x) p 2( x)|. (a) θ 1( x) = Arg, θ 2( x) = Arg can be arbitrarily specified without changing F s( x). Note: Author names will be searched in the keywords field, also, but that may find papers where the person is mentioned, rather than papers they authored.īasic form: F s( x) = γ 1| p 1( x)| 2 + γ 2| p 2( x) 2.Use a comma to separate multiple people: J Smith, RL Jones, Macarthur.Use these formats for best results: Smith or J Smith.For best results, use the separate Authors field to search for author names.Use quotation marks " " around specific phrases where you want the entire phrase only.Question mark (?) - Example: "gr?y" retrieves documents containing "grey" or "gray".Asterisk ( * ) - Example: "elect*" retrieves documents containing "electron," "electronic," and "electricity".
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