Research On CBL Signal Processor System Based On DSP

In recent years people has used imaging logging system to perambulate their oil and gas resources in most developed countries. Imaging logging system is a young subject. It cannot provide the parameters of the resources and yields the number of oil and gas, but give the 3-D images on the wall and the mouth of the well by image manipulation. Because of the improved yields, this new technology has great signification on the oil and the gas.Digital Signal Processing is a new subject, the signal will reach to people's needs when it has been processed by digital signal processing. Digital filter raise and enhance the useful signal and decrease the useless. It can be realized by two ways: the special hardware or software and the last will be easily realized by PC. Now the digital signal processing has been largely used in imaging logging system.CBL signal is very important in imaging well-logging systems. It mainly has three functions. First, it can evaluate the quality about the cementation of the cement,thimble and stratum. Second, it can give the time and scope of the signal and the hole signal state. Last, it also can show the 3-D picture of the thimble and cement circle.In order to deal with CBL signal, I consider a lot and give a proper idea to design a system which will solve the problem. Firstly, I will use TMS320VC5402 as the core, it will be used to process the signal. Secondly, I will use a piece of CPLD circuit to control and decode and then two pieces of FIFO will be used as the equipped SRAM. In last, I use ADS803 to achieve the data collection. On the other hand, I also will consider and solve the feasibility and anti-jamming of the whole hard system. If I perform by this idea, the problem will be resolved faultlessly.Finally in this paper I have realized the collection and processing of CBL signal in using 5402 and satisfied the severe request in real-time in using FIFO. At the same time, I use...