It is often desireable to widen the interference null width in an adapted pattern to impart robustness into the realized adapted pattern in some real environments.

The character of the eigenvalues of the constraint matrix was aimed,and the character is that the matrix has the same number of larger eigenvalues as number of the nulls that the matrix denoted.

The most basic problem of designing antenna array is deciding radiation pattern, if we can specify the positions of the nulls, and make the nulls aim at the interferes on given angle on pattern, it will restrain interferes effectively, and minimize Signal-to-Noise capability drop that is caused by int.

Method of null steering by phase control;

A null steering technique by phase and element position perturbations;

Based on this new method,a selective algorithm is introduced for the purpose of reducing the number of controlled elements for null steering,and increasing.

Research on the stochastic model of zero defect product design;

The quality management conception of "zero defect" is first introduced to the quality culture construction of petroleum enterprises.

In the environment of market economy, the introduction of "zero defect" as a quality management objective into oil enterprises can free them from "management crisis" and reduce production cost so as to accumulate adequate strength for continuous development in the increasingly fierce market competition.

The analysis of medical quality zero deficiency management and cost of quality;

The correlation between medical quality zero deficiency management and deficiency medical management;

To avoid medical dispute according to ideal of zero deficiency quality management and how to use it.

Research on beamforming of wide nulling algorithm;