2results about How to "Will not affect the working environment" patented technology

This invention discloses a channel equalization method for an SC-IFDMA system, comprising the following steps: transforming the received data of the SC-IFDMA system to the frequency domain; obtaining pilot symbols and data symbols according to the system frame structure; estimating the current signal-to-noise ratio (SNR) and current channel characteristics based on the pilot symbols to obtain estimated SNR and channel estimation parameters; calculating channel equalizer coefficients based on the estimated SNR and channel estimation parameters; passing the data symbols through the channel equalizer, setting the number of iterations, and iteratively equalizing the data symbols using the channel equalizer coefficients; transforming the equalized data symbols to the time domain and making a decision; determining whether the current number of iterations is the set number; if the set number is reached, outputting the current data symbol as the final iterative equalization result. The method disclosed in this invention improves equalization performance while keeping most of the processing in the frequency domain, reducing the complexity of signal processing.

This application discloses a molecular sieve pelletizing machine, relating to the field of pelletizing machines. The present invention provides a molecular sieve pelletizing machine, relating to the technical field of pelletizing machines. The molecular sieve pelletizing machine includes a base, a support frame on top of the base, and a rotating box rotatably connected to one side of the support frame. A rotary motor is located on one side of the support frame. In this application, raw materials are first added to the interior of the rotating box through a feeding port. Then, the rotary motor is started to rotate the rotating box. Next, a water pump box is started, causing water in the water pump box to be sprayed into the rotating box from a spray nozzle on a water spray pipe connected to the water pump box. A baffle is provided to prevent raw material powder agitated by the water spray from the spray nozzle, thus preventing this raw material powder from splashing everywhere and affecting the working environment. A cleaning device can be used to clean the bottom surface of the baffle and the inner wall of the rotating box to remove the wet raw material powder adhering to them, preventing wet powder residue from sticking to the inner wall of the rotating box and the bottom surface of the baffle and being difficult to clean.