Symbols according to a certain probability will depend on, in general, the previous selection and the
The problem of special symbols. A physical system, or a mathematical model, is produced by a system
As we all know, the symbols of this sequence consist of a group. As a stochastic process, we can
Consider a discrete source, so send a random process. On the other hand, any random
The symbol selection of discrete sequences generated in this process can be regarded as discretization in a finite set.
Source. This will include the following:
1 。 Natural languages, such as English, German and Chinese.
2 。 A quantitative process in which a continuous information source becomes discontinuous. for
For example, quantized speech comes from a Chinese patent medicine transmitter, or quantized TV signals.
3 。 In the case of mathematics, we just define a random process abstractly, which will produce a sequence.
A symbol of. The following are examples of such sources last year.
(a) Suppose we have five letters A, B, C, D, e-commerce, which is the probability of each choice. 2. Successive.
Choose independence. This will lead to a sequence in which the following is a typical one.
For example.
bdcbcecccadbddaaecee 1
Abbdaeecaceebaeecbcea IV
This is a table established and used, random number.