It was suggested that direct intermediate frequency sampling was approached by two branch sampling, otherwise digital productdetector was adopted to digital interpolation.
提出用二分项采样法实现直接中频采样，而数字式检波器采用数字内插法。
2
A multifunctional surface state detector is developed to meet the need of checking the surface quality of a product.
为满足产品表面质量检查的要求，作者研制了一机多能的表面状态检测仪。
3
Mud-Water Interface Detector based on MC68EZ328 has been product. It is used in fieldwork well. It bring water factory big economic benefit.