3results about How to "High rejection ratio" patented technology

The application relates to a direction-finding method based on array-received data reconstruction, and belongs to the technical field of array signal processing. The application first calculates the covariance matrix of array-received signals, then combines the array flow characteristics to use the elements in the covariance matrix to perform array-received data reconstruction, and finally performs direction finding based on the reconstructed received data matrix, so that the processing gain and the direction-finding precision are further improved. The application can improve the processing gain of array signals and the spatial resolution of array direction finding without increasing the number of array elements and the array aperture. Compared with the traditional beam synthesis method, the application has higher direction-finding precision and sidelobe suppression ratio.

The invention discloses a high-power low-ripple high-efficiency hybrid structure linear power supply and a working method, and relates to the technical field of electronics. Comprising a reference source module, a power operational amplifier module, an MOS (Metal Oxide Semiconductor) linear voltage regulation module, a voltage and power judgment module, and a first switch module and a second switch module which are used for gating the power operational amplifier module or the MOS linear voltage regulation module. The reference source module serves as a reference circuit and is used for outputting a reference voltage signal to the common end of the first switch module and controlling the reference voltage signal to be output to the power operational amplifier module or the MOS linear voltage regulating module through the first switch module. According to the invention, the optimal working mode is dynamically selected in a full-power range, the output characteristics of high precision, low ripple and high efficiency are realized, the overall energy efficiency and practicability of the power supply are effectively improved, the power consumption and temperature rise of the adjusting tube can be obviously reduced during high-power or low-dropout output, the long-term operation reliability of the power supply is ensured, and the heat dissipation design is simplified.

This application provides a wideband high power supply rejection ratio (PSRR) bandgap reference circuit. The wideband high PSRR bandgap reference circuit includes: one end of a voltage divider circuit electrically connected to a signal source, and the other end of the voltage divider circuit electrically connected to one end of a first PSRR enhancement circuit; one end of a reference voltage circuit electrically connected to the other end of the first PSRR enhancement circuit, and the other end of the reference voltage circuit electrically connected to one end of a second PSRR enhancement circuit, with the other end of the second PSRR enhancement circuit serving as the output. This method significantly improves the PSRR characteristics of the output voltage at low and medium frequencies, and better achieves a high PSRR characteristic for the output voltage over a wide frequency range.