improvements in the system; and A. R. Lingenfelter, who was responsible for recording and reducing the data. REFERENCES 1. Reiger, S.
THE BKLL 8Y8TKM TECHNICAL JOUKN'AL, NOVEMBEK 1963 A Relation Between the Basis Functions of Periodically Varying Nondissipativc Circuits By S I D N E Y D A R L I N G T O N (Manuscript rweived Augus
A Self-Adaptive Echo Canceller By M. M. SONDHI and A. J.
This paper describes a method of increasing the reliability of synchronization in a network of remote clocks.
A Simple Method for Estimating Five-Minute Point Rain-Rate Distributions Based on Available Climatological Data By W. Y. S.
s = max,, Z) ,-,·). We consider a PQl factorization of D with P and Q matrices each of order n X ns.
A Telephone Traffic Model Based on Randomly Closing Crosspoints, and Its Relationships to Other Models By V. E.
A Three-Radiometer Path-Diversity Experiment By R. W.
AC Focusing of an Electron Microscope Objective Lens By R. D.
The quality of speech output in adaptive aperture coding1 has been improved by two refinements: (i) a code selection procedure based on formal error minimization rather than observations of apertur
