Does the League of heroes' shield count as defense

5.

If K21 does not arrive in Nanning late, it can catch d3925

6. There is no problem when you use this virtual excavator, because the software itself does not have high requirements for graphics card. Although the performance of gt720 graphics card is poor, it can also be used normally. It's better to replace an independent graphics card with strong performance, such as gtx960

7. 7890k is an APU. The overall performance of the CPU part of this APU is better than that of i36100, but the single core performance is still a short board. It performs better than I3 in games with high multithreading support, such as stand-alone blockbusters. However, it is weak for a large number of domestic online games, because most of the domestic online games still have single core performance. As for the graphics card of this APU, in fact, neither the APU nor the Intel Core display can compare with the single display. Even if the GPU reaches that level, the solution of replacing the graphics memory with the memory still lags behind the final performance of the graphics card. The GPU built in this APU is roughly equivalent to the "gt640 ~ gt740" of the single display GPU. Once again, it is emphasized that the APU or the Intel Core display is limited by the replacement of the graphics memory with the memory, Finally, the display performance can not reach the theoretical value. No matter how high frequency DDR3 is, the performance is much worse than gddr5. In short, before the Zen architecture and the new GPU architecture came out, amd didn't look good. They were old things a few years ago, and they continued to sell with increasing frequency.

8. 8-bit quantization refers to a total of 256 quantization levels
the number of quantization bits refers to the number of binary bits needed to distinguish all quantization stages. For example, if there are 8 quantization levels, they can be distinguished by 3-bit binary numbers, because the quantization of 8 quantization levels is called 3-bit quantization
the actual signal can be regarded as the sum of quantization output signal and quantization error, so only using quantization output signal to replace the original signal will have distortion. Generally speaking, the amplitude probability distribution of quantization error can be regarded as a function of- Δ/ 2～+ Δ/ 2. It can be proved that the quantization distortion power is proportional to the square of the minimum quantization interval. The smaller the minimum quantization interval, the smaller the distortion. The smaller the minimum quantization interval is, the more quantization stages are needed to represent a certain amplitude of analog signal, so the more complex the processing and transmission is. Therefore, quantization should not only rece the quantization series as much as possible, but also make the quantization distortion invisible. Generally, a binary number is used to represent a certain quantization series. After transmission, the amplitude of the original signal is recovered according to the binary number at the receiving end.

9.

In the field of digital signal processing, quantization refers to the process of approximating the continuous value (or a large number of possible discrete values) of a signal to a finite number (or a small number) of discrete values. Quantization is mainly used in the conversion from continuous signal to digital signal. Continuous signal becomes discrete signal after sampling, and discrete signal becomes digital signal after quantization

note that discrete signals usually do not need to go through the process of quantization, but may not be discrete in the range, or need to go through the process of quantization. Signal sampling and quantization are usually implemented by ADC

extended data:

< P > the classification of quantization is divided into scalar quantization and vector quantization according to the dimension of quantization. Scalar quantization is one-dimensional quantization, one amplitude corresponds to one quantization result. Vector quantization is a two-dimensional or even multi-dimensional quantization, two or more amplitudes determine a quantization result

in the case of two dimensions, two amplitudes determine a point on the plane. This plane has been divided into n small regions according to probability, and each region corresponds to an output result (codebook)

the vector quantizer will output the codeword corresponding to the region in which the point determined by the input falls. The advantage of vector quantization is that it introces many factors that determine the output, and uses the probability method, which is generally more efficient than scalar quantization