眾位大哥：兄弟看過(guò)的資料上都一筆帶過(guò)說(shuō)：復(fù)合碼由擴(kuò)頻碼與擾碼逐元素向乘得到，可是小弟怎么乘也得不到與給出的復(fù)合碼一樣的結(jié)果，所以小弟在此向各位大哥跪求復(fù)合碼的計(jì)算方法！

呵呵，研究的夠深呀

In the design of the cryogenic system and superconducting magnets for a poloidal field system in a tokamak fusion reactor, it is important to have an accurate estimate of the heat produced in the superconducting magnets as a result of the rapidly changing magnetic fields. Until recently, this estimate was obtained by assuming that the field and the time rate of change of the field were constant throughout the coil windings. A more accurate method of estimation involves integrating the losses over the coil windings, thus taking into account the spatial variation of the magnetic field. A computer code, PLASS (Pulsed Losses in Axisymmetric Superconducting Solenoids), has been written to perform this integration. PLASS has been used to analyze the present design for the poloidal coil system of the ORNL Experimental Power Reactor (EPR). This design requires that superconductor hysteresis losses, superconductor coupling losses, stabilizing material eddy current losses, and structural material eddy current losses be taken into consideration in the calculation of conductor losses. A tabulation of individual losses vs variations in superconductor characteristics and coil current changes is presented to demonstrate the parameters which significantly affect the design. Results indicate that the total energy released into the cryogenic system is less than one-half of that predicted by the previously oversimplified calculation.fjouierpK:JFD()$本文來(lái)自移動(dòng)通信網(wǎng)gg1fic3.cn,版權(quán)所有

先看看給出的復(fù)合碼是十進(jìn)制還是十六進(jìn)制，還是其他進(jìn)制，看看是不是這個(gè)問(wèn)題