Abstract

Monitoring the Doppler history of an elementary target, such as a line scatterer traversing a coherent illuminating beam, and electro-optical processing of this Doppler information, permits reconstruction of a visible image of the line scatterer. A tutorial two-dimensional analysis assuming a line scatterer is presented in conjunction with a confirming optical experiment. These show how a single homodyne or heterodyne receiver suffices to retrieve those features of an extended object that lie parallel to its direction of motion across the beam. The possibility of long-range imaging by use of target-synthesized apertures, especially at microwave frequencies, is also discussed on the basis of the results of this paper.

© 1973 Optical Society of America

Short-term average optical-beam spread in a turbulent medium

H. T. Yura
J. Opt. Soc. Am. 63(5) 567-572 (1973)

Scintillation and transmitter-aperture averaging over vertical paths*

P. J. Titterton
J. Opt. Soc. Am. 63(4) 439-444 (1973)

Normal fixation of eccentric targets*

Richard V. Sansbury, Alexander A. Skavenski, Genevieve M. Haddad, and Robert M. Steinman
J. Opt. Soc. Am. 63(5) 612-614 (1973)

Source reconstruction from the modulus of the correlation function: a practical approach to the phase problem of optical coherence theory*

D. Kohler and L. Mandel
J. Opt. Soc. Am. 63(2) 126-134 (1973)

Experimental effects of finite transmitter apertures on scintillations*

J. Richard Kerr and James R. Dunphy
J. Opt. Soc. Am. 63(1) 1-8 (1973)