说明：这是单边带调制源码，求消息信号和已调信号的频谱。
This is a single sideband modulation source, for the signal and the signal has been modulated spectrum.
这艘船上的信号员用旗语向另一艘船发送好消息。
The signalman on the ship wigwagged the good news to the other ship.
消息可以是简单的信号、复杂的节点信息组合或者条件数据。
Messages can be simple signals, complex combinations of node information, or conditional data.
通过触发对应于某些业务领域事件的信号和消息，来启动交互。
The interactions are initiated by firing a signal or message that corresponds to some business-domain event.
信号处理器的消息和程序的数据都会被破坏，因为两个调用操作了同一数据结构：流本身。
Both the signal handler's message and the program's data could be corrupted, because both calls operate on the same data structure: the stream itself.
底层网络包的数据或消息区域封装了一个请求命令，它请求设备中包含设备信号数据的寄存器的内容。
A request command is enclosed in the data or message section of the underlying network packet. It requests the contents of registers in the device containing signal data of a device.
信号的不同之处在于它们不返回任何内容：既没有“信号返回”消息，也没有任何类型的错误消息。
Signals are different in that they cannot return anything: there is neither a "signal return" message, nor any other type of error message.
只有在完全没有无线网络信号的节日，才可能有傻冒相信大卫·哈塞尔霍夫死亡的消息。
Only at festivals with no Wi-Fi signals can the gullible be tricked into believing that David Hasselhoff has passed away.
每个节点都能够自动地路由其他节点中传来的消息，即有效地增强了信号的传输范围。
Each node can automatically route messages from other nodes, greatly increasing the communication range beyond that of any single device.
当使用默认的bash终端设置在后台运行作业时，bash 通常会捕获SIGCHLD信号并在打印下一个终端输出行之后打印消息。
When you run a job in the background with default bash terminal settings, bash normally catches SIGCHLD signals and prints a message after the next terminal output line is printed.
假定信号处理器使用fprintf打印一条消息，而当信号发出时程序正在使用同一个流进行fprintf调用。
Suppose the signal handler prints a message with fprintf and the program was in the middle of an fprintf call using the same stream when the signal was delivered.
检测信号算法经过优化，且仅在需要时发送该信号（例如，如果成员已经因其他原因处于通信中，就没有必要再发送一条检测信号消息）。
The heartbeat algorithm is optimized and only sent if needed (for example, if the members are already communicating for other reasons, there is no need to send an additional heartbeat message).
最后，正如第一篇文章中提到的，并非所有信号量超时消息都意味着严重的问题。
Finally, as we mentioned in the first article, not all semaphore timeout messages indicate a serious problem.
在标准输出中会打印一条消息以让用户知道发送了一个信号。
A message is printed on standard output to let the user know a signal was sent.
对于一颗尚未发现电力、更别提制造信号接收器的行星，它们为何要费心向那里发送消息呢？
Why would they bother to send a message to a planet that hadn't even discovered electricity, let alone built a receiver for such a message?
当然现在，这则只涉及姑娘们之间的小道消息是不能促使转会实现的，然而它是个有意思的信号，暗示了卡卡得到了整个米兰的支持。
Now of course, this little gossip between girls alone can't make transfers happen, However it's interesting to note that Kaka has the unanimous support of the whole Milan Squad.
有信号表示，希腊的第二次笨拙的债务救助将会以债券重组的方式来结束。这一消息促使投资者从欧元核心区和外围国家纷纷逃离。
Signals that the endless fumbling over Greece's second bailout will end in debt restructuring prompted investor flight from core euro-zone countries as well as peripheral ones.
根据商业周刊的消息来源，英飞凌的芯片是由苹果编程的，以生成比实际要求更高质量的3g信号。
According to BusinessWeek's sources, the Infineon chip was programmed by Apple to generate a higher quality 3g signal than was actually required.
CSCF负责端点的SIP注册，并处理服务层中恰当应用服务器的SIP信号消息传递。
CSCF handles SIP registration of the end points and process SIP signal messaging of the appropriate application server in the service layer.
好消息是，这些国家和国际监管机构发出了一致信号。
The good news is that there is striking consistency in the messages that these national and international regulators are sending out.
这个函数最后将获取和释放执行控制台信号，并将下一条日志消息发送到控制台(在release_console_sem中执行)。
At the end of this function, a gratuitous acquisition and release of the console semaphore is performed that emits the next log message to the console (performed within release_console_sem).
在这八个成分中，编码和解码具有特别的意义，因为通信是通过将消息编码为信号并通过在接收端解码该信号来实现的。
Among these eight ingredients, encoding and decoding are of special significance because communication is achieved by encoding a message into a signal and by decoding this signal at the receiving end.
消息流用来从一个泳池到另一个泳池发送信号或者消息。它不可以在一个泳池连接活动。
A message flow is used to send a signal or message from one pool to another. It may not be used to connect activities within one pool.
编码是指发送方将消息放入信号(编码消息)的过程；解码是指接收机解释来自发送者的信号的过程。
Encoding refers to the process of the sender putting the message into a signal (the encoded message); decoding refers to the process of the receiver interpreting the signal from the sender.
坏消息是在斯特拉特福德与东哈姆之间的某一处出现了信号点故障，也就是说我们将很可能无法到达我们的目的地。
The bad news is that there is a points failure somewhere between Stratford and East Ham, which means that we probably won't reach our destination.
在消息解码的过程中，沿着信道的噪声可能干扰接收机对来自发送机的信号的解释，其可以破坏或失真信号。
In the process of message decoding, noise along the channel may interfere with the receiver's interpreting of the signal from the sender it can destroy or distort the signal.
在消息解码的过程中，沿着信道的噪声可能干扰接收机对来自发送机的信号的解释，其可以破坏或失真信号。
In the process of message decoding, noise along the channel may interfere with the receiver's interpreting of the signal from the sender it can destroy or distort the signal.
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