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After the public relations crisis, the endless roar of network public opinion brings great pressure of public opinion and economic benefit to the operation of social media. This paper discusses the public opinion of social media, which will highlight the concept of “user center” of social media, attach importance to the user value of social media, re-examine the “expected vision” of social media, pay attention to the “aesthetic experience” of social media, and improve the acceptance effect. Pay attention to social media aesthetic field and their own experience fusion.

In order to improve the transmission quality of stratospheric communication network, reliability evaluation is required. A random walk-based instantaneous fading estimation and channel equalization method for stratospheric communication channel is proposed, a transmission channel equalization control and characteristic analysis model for stratospheric communication network transmission is constructed, a fractional interval equalization method is adopted for channel equalization adjustment for stratospheric communication network transmission, and an output channel fading characteristic estimation model for stratospheric communication network transmission is established. The output stability of stratospheric communication network transmission is adjusted by adopting a matching filter detection method, the filtering detection of stratospheric communication network transmission is carried out by adopting an output channel fading random walk detection method, adaptive equalization scheduling processing of stratospheric communication network output channels is carried out by combining the random walk detection method, baud equalization control of stratospheric communication network is carried out by adopting a random spread spectrum method, distortion suppression of stratospheric communication network transmission channels is carried out by adopting carrier modulation and ambiguity detection methods, and instantaneous fading estimation and channel equalization of stratospheric communication channels are realized by combining large data sampling and spatial equalization allocation methods. The simulation results show that the accuracy of instantaneous fading estimation and channel equalization for stratospheric communication channel using this method is better, the channel equalization for stratospheric communication is better, and the output error rate is lower.

The network electric data link is interfered by the electromagnetic radiation field and the thermal noise, and the anti-interference detection design, the electromagnetic radiation field and the thermal noise are required to be expressed as a group of low-resolution random data, Resulting in poor accurate detection of the network electrical data link. In this paper, a cooperative anti-interference detection algorithm based on cascaded Kalman filtering is presented. a network electric data link detection data flow information model and a noise interference model in a strong electromagnetic radiation interference environment are constructed, The network electric data link is mapped into a group of non-linear random bandwidth oscillation signal models, and the signal detection algorithm is used to realize the cooperative anti-interference detection of the network electric data link. The simulation results show that the cooperative anti-interference detection of the network electric data link is carried out by using the algorithm, and the anti-interference detection accuracy of the network electric data link is high, and the anti-interference and anti-interference detection method has higher anti-interference and robustness.

Satellite communication secret signal transmission is a kind of spread spectrum communication. It is easy to produce multi-path interference in the process of generating satellite communication secret signal spread spectrum code sequence at the receiver, so it is necessary to suppress the multi-path interference and reduce the bit error rate (BER) of satellite communication confidential signal reception. A multi-path interference suppression algorithm for satellite communication confidential signal transmission based on passive time flip mirror control and matching filtering is proposed. The spread spectrum channel model and satellite communication secret signal transmission model of satellite communication secret signal transmission are constructed. The time mirror inversion technology is used to realize the effective estimation of the channel, the multi-path component of the received array element in satellite communication secret signal transmission is adjusted, the interference signal is decomposed into positive signal and time mirror inversion negative signal, and then the symbol splicing is carried out to realize the compression coding of satellite communication secret signal, and the focusing gain is obtained. The multi-path interference is eliminated. The simulation results show that the algorithm can effectively improve the focusing performance of the output impulse response of the satellite communication confidential signal transmission system, improve the anti-interference ability of satellite communication confidential signal transmission, and reduce the communication bit error rate.

As the increase of current transformer knee point voltage, the conventional test method can not meet the requirements. In response to this situation, a prototype of instrument transformer tester based on low frequency source and compensation algorithm is developed. When using this device, it is possible to achieve testing at lower voltage. Due to the application of this tester, the flexibility and measurement capability are improved, at the same time the test intensity effectively reduced and the efficiency enhanced. The comprehensive performance of this tester is high, as a result of adopting SPWM, power factor correction (PFC), soft-switching and other advanced technologies. The principles of its main components and functions are described, and following the performance and comparison test indicate that the performance of this tester basically can meet the application requirements.