Impacts of frequency increment errors on frequency diverse array beampattern

Impact of frequency increment errors on frequency diverse array MIMO in adaptive beamforming and target localization

Article history: Available online 9 May 2015

Speaker Direction-of-Arrival Estimation Based on Frequency-Independent Beampattern

The differential microphone array (DMA) becomes more and more popular recently. In this paper, we derive the relationship between the direction-of-arrival (DoA) and DMA’s frequencyindependent beampatterns. The derivation demonstrates that the DoA can be yielded by solving a trigonometric polynomial. Taking the dipoles as a special case of this relationship, we propose three methods to estimate ...

Frequency of Errors in Clinical Laboratory Practice

  Background and Objective: Laboratory errors are one of the major factors that affect the diagnosis, prognosis, treatment and monitoring in patients.The objective of study is to evaluate the frequency and type of errors in different phases of testing at the Pathology Department of the Shalamar Hospital, Lahore and to evaluate the causes of errors. Methods: This observational study was carrie...

Frequency Diverse Array OFDM Transmitter for Secure Wireless Communication

Joint Range and Angle Estimation Based on Sub- Array Scheme with Frequency Diverse Array Radar

Frequency Diverse Array (FDA) has its unique advantage in realizing Low Probability of Intercept (LPI) technology for its beam pattern is related to the range, time and angle. In this paper, a sub-array scheme of range-angle joint estimation of a target for Frequency Diverse Array (FDA) radar is proposed. To solve the problem of distance and angle response coupling of basic ULA FDA radar, the e...