Nanosecond R-F pulses for waveguide fault-finding
Shoemaker, William Bruce
MetadataShow full item record
A system has been developed for the location of waveguide discontinuities using nanosecond radio-frequency pulses with time-domain reflee tome try techniques. The r-f pulse generation method used is discussed as well as the alternative method's Investigated. Measurement-system design and procedures are outlined. Resolution on the order of ^ feet for reflections over '+5- a - return loss and accuracy of 2 per cent as compared to conventional methods are reported and various measurement examples are presented. Significant advantages of this system appear in locating imperfections in waveguides and other bandpass transmission systems, as compared to conventional c-w-standing-wave or trial-and-error methods.
Showing items related by title, author, creator and subject.
Yale, G.; Agrawal, B.N. (1994);This paper concerns the cooperative control of multiple manipulators attached to the same base as they reposition a common payload. The theory is easily applied to inertially based problems as well as space based free-floating ...
Nagashima, M.; Agrawal, B.N. (2012);For a large Adaptive Optics (AO) system such as a large Segmented Mirror Telescope (SMT), it is often difficult, although not impossible, to directly apply common Multi-Input Multi-Output (MIMO) controller design methods ...
Museler, Erica A. (Monterey, California. Naval Postgraduate School, 2003-03);SeaWiFS data converted to optical properties of the ocean in the form of vertical and horizontal underwater visibility products are compared to in-water diver and optical instrument measurements during the Model Diver ...