When I started writing the first edition of RF Power Amplifiers for Wireless Communications,some time back in 1997, it seemed that I was roaming a largely uninhabitedlandscape. For reasons still not clear to me there were few, if any, otherbooks dedicated to the subject of RF power amplifiers. Right at the same time, however,hundreds of engineers were being assigned projects to design pas for wirelesscommunications products. It was not, therefore, especially difficult to be successfulwith a book that was fortuitously at the right place and the right time.
系統下,地球坐標轉換的源代碼,在WGS-84坐標和北京54坐標之間的一套轉換參數,可以全國通用的，在每個地方會不一樣，因為它們是兩個不同的橢球基準。 // WGS2GK.CPP : C++ version of Ottmar Labonde s WGSDHDN3.pas with CPU time measurement // compile with MS Visual C++ version 6.0 or do the necessary modifications for your compiler // // Conversion of
