In this paper, the monitoring techniques are introduced based on Nyquist sampling, frequency-mixing and narrow-band sampling respectively according to the characteristic of the ultra-high-frequency (UHF) partial discharge (PD) signal in narrow-band.

Travel-time computation based on linear interpolation and narrow-band technique

The spatial distribution patterns and sampling techniques of Lyonetia eriobotryae larvae;

Spatial pattern of angelica root rot and its sampling techniques;

Spatial distribution patterns and sampling techniques of Holcocerus hippo phaecolus;

The distribution regulation and sampling technique of Cryptotympana atrata (Fabricius) adult or egg in the pomelo orchard;

Spatial distribution pattern and sampling technique of Bemisia tabaci adults in the broccoli fields;

Spatial distribution pattern and sampling technique of Rice stripe virus(RSV);

Spatial patterns of Hylobitelus xiaoi larvae and their sampling methods;

Spatial distribution pattern and sampling methods of Propylaea japonica (Thunberg) in tobacco field;

The spatial distribution pattern and sampling method of the larvae of Leis axyridis in tobacco fields.;

A preliminary study on the spatial distribution patterns of the eggs of Apriona swainsoni and sampling techniques;

The spatial distribution pattern and sampling technique of Coccophagus yoshidae Nakayama;

Sampling methods including over-sampling,under-sampling were taken to make up the shortage caused by the imbalanced data.