第5版课后答案

第5版课后答案Tag内容描述：<p>1、National and International Accounts: Income, Wealth, and the Balance of Payments 1.The following partial table of the OECDs 2004 ranking of member countries based on their GDP per capita. Compute the ratio of GNI to GDP in each case. What does this imply about net factor income from abroad in each country? Compute the GNI rankings of these countries. Are there any major differences between the GDP and the GNI rankings? What do these differences imply? Indicate? S-33 516 GDPGNI per Personper Per。</p><p>2、第三章 信号调制解调电路3-1 什么是信号调制？在测控系统中为什么要采用信号调制？什么是解调？在测控系统中常用的调制方法有哪几种？在精密测量中，进入测量电路的除了传感器输出的测量信号外，还往往有各种噪声。而传感器的输出信号一般又很微弱，将测量信号从含有噪声的信号中分离出来是测量电路的一项重要任务。为了便于区别信号与噪声，往往给测量信号赋以一定特征，这就是调制的主要功用。调制就是用一个信号（称为调制信号）去控制另一作为载体的信号（称为载波信号），让后者的某一特征参数按前者变化。在将测量信号调制，并将它。</p>