Incoherent optical ambiguity function generator

Claim 2

An electro-optical system for computing the mathematical function of the discrete sample form ##EQU7## where {s p } and {x mn } are sets of numbers representing sampled values of the functions s(t) and x(τ,w), respectively comprising: a photo-responsive programmable mask for storing said sampled values of {s p } of the signal s(t); a light source positioned to illuminate said photo-responsive programmable mask; said light source being responsive to input signals for temporally modulating the intensity of the output of said light source as a function of the said values {s p }; a photographically recorded mask having encoded thereon information representative of the values {f pn }; an imaging lens positioned for transmitting light radiated by said photographically recorded mask; a photo-sensor array positioned to be illuminated by the irradiance from said imaging lens.

Claim 3

The system of claim 1 wherein said photo-sensor array comprises a CCD photo-sensor area array.

Claim 4

The system of claim 1 wherein said programmable mask comprises a matrix addressed liquid crystal light valve.

Claim 5

The system of claim 1 wherein said programmable mask comprises a line array light valve; said system further comprising a cylindrical/spherical lens positioned to be illuminated by the light transmitted by said line array light valve.

Claim 6

The system of claim 1 wherein said light source comprises: a light emitting diode; a condensing lens; and a beam splitter positioned to irradiate said programmable mask with the light output of said light emitting diode.

Claim 7

The system of claim 5 wherein said programmable mask comprises a matrix addressed liquid crystal light valve.

Claim 8

The system of claim 6 including a contrast control aperture positioned to be irradiated by the light output of said beam splitter.

Claim 9

The system of claim 7 wherein said light source generates incoherent light energy.

Claim 10

An electro-optical system for computing a mathematical function of the form ##EQU8## where {s p } and {x mn } are sets of numbers representing sampled values of the functions s(t) and x(τ,w), respectively, comprising: a line array of light emitting diodes; a programmable weighting tap operably-coupled to each element of said line array of light emitting diodes; a cylindrical/spherical lens combination positioned to be illuminated by said light emitting diodes; and an optical CCD array having encoded thereon fixed information representative of the values {f pn } disposed to be irradiated by the light energy passing through said cylindrical/spherical lens combination.

Claim 11

An electro-optical system for computing a mathematical function of the form ##EQU8## where {s p } and {x mn } are sets of numbers representing sampled values of the functions s(t) and x(τ,w), respectively, comprising: a line array of light emitting diodes; a programmable weighting tap operably-coupled to each element of said line array of light emitting diodes; a cylindrical/spherical lens combination positioned to be illuminated by said light emitting diodes; and an optical CCD array having encoded thereon fixed information representative of the values {f pn } disposed to be irradiated by the light energy passing through said cylindrical/spherical lens combination.

Claim 12

An electro-optical system for computing the mathematical function of the discrete sample form ##EQU9## where {s p } and {x mn } are sets of numbers representing sampled values of the functions s(t) and x(τ,w), respectively comprising: a photo-responsive programmable mask for storing said sampled values of {s p } of the signal s(t); a light source positioned to illuminate said photo-responsive programmable mask; said light source being responsive to input signals for temporally modulating the intensity of the output of said light source as a function of the said values {s p }; a photographically recorded mask having encoded thereon information representative of the values {f pn }; a contrast control aperture assembly positioned between said light source and said photographically recorded mask; an imaging lens positioned for transmitting light radiated by said photographically recorded mask; a photo-sensor array positioned to be illuminated by the irradiance from said imaging lens.

Claim 13

An electro-optical system for computing the mathematical function of the discrete sample form ##EQU9## where {s p } and {x mn } are sets of numbers representing sampled values of the functions s(t) and x(τ,w), respectively comprising: a photo-responsive programmable mask for storing said sampled values of {s p } of the signal s(t); a light source positioned to illuminate said photo-responsive programmable mask; said light source being responsive to input signals for temporally modulating the intensity of the output of said light source as a function of the said values {s p }; a photographically recorded mask having encoded thereon information representative of the values {f pn }; a contrast control aperture assembly positioned between said light source and said photographically recorded mask; an imaging lens positioned for transmitting light radiated by said photographically recorded mask; a photo-sensor array positioned to be illuminated by the irradiance from said imaging lens.

Claim 14

The system of claim 5 wherein said light source further comprises a contrast control aperture positioned to be irradiated by the light output of said beam splitter.

Claim 15

An electro-optical system responsive to a source of light for computing the mathematical function of the discrete sample form ##EQU10## where {s p } and {x mn } are sets of numbers representing sampled values of the functions s(t) and x(τ,w), respectively, comprising: a photo-responsive programmable mask for storing said sampled values of {s p } of the signal s(t); a photographically recorded mask having encoded thereon information representative of the values {f pn }; an imaging lens positioned for transmitting light transmitted by said photographically recorded mask; and a photo-sensor array positioned to be illuminated by the transmitted light from said imaging lens.

Claim 16

An electro-optical system responsive to a source of light for computing the mathematical function of the discrete sample form ##EQU10## where {s p } and {x mn } are sets of numbers representing sampled values of the functions s(t) and x(τ,w), respectively, comprising: a photo-responsive programmable mask for storing said sampled values of {s p } of the signal s(t); a photographically recorded mask having encoded thereon information representative of the values {f pn }; an imaging lens positioned for transmitting light transmitted by said photographically recorded mask; and a photo-sensor array positioned to be illuminated by the transmitted light from said imaging lens.