Signal synchronization and compensation of meteor for extremely low SNR;

Modeling and simulation of meteor extremely low SNR communication system based on SPW;

Research and Implementation on HF Technology in Strong Single-frequency-interference under the Condition of Extremely Low SNR;

Data processing methods for low signal-to-noise ratio seismic data from complex mountainous areas;

Seismic acquisition in the low signal-to-noise ratio area of the south step-fault zone in Gaoyou sag.;

Processing techniques of low signal-to-noise ratio seismic data in Daqing prospect area,Tarim Basin, Xinjiang Region;

Detection and recognition technology for signal with low SNR;

Low SNR Speech Signal Endpoints Detection and Adaptive Filtering;

Narrow-band interference suppression in high-frequency spread spectrum system under extremely low SNR;

It becomes more difficult in the low signal to noise ratio situation especially.

This paper illustrated processing methods for complex surface seismic data with low signal to noise ratio seismic data from Hefei Basin and proposed a process which consised of statics, noise suppression, high precision velocity analysis, and revision of NMO.

1 m),which can effectively work in low signal to noise ratio(SNR) condition,that is,it is difficult to be detected.

Application of pseudo-Zernike moments in target detection for low-SNR infrared images;

Low-SNR infrared images often present bad feature such as low target-background contrast,blurred edge and large noise index,so traditional target recognition methods such as template matching and Hu moments cannot detect target effectively.

Due to the excellent performance of error correcting, Turbo codes are chosen for the channel coding algorithm for low-SNR communication system.

Processing technique for seismic data with low S/N ratio in Xinanlin Mountains.;

Study on processing method for seismic data with low S/N ratio in Tarim basin.;

The processing technique for low S/N ratio data in complex surface area.;