baseband

简明释义

英[ˈbeɪsˌbænd]美[ˈbeɪsbænd]

n. 基带

英英释义

单词用法

同义词

反义词

例句

1.This paper mainly introduces the baseband transmission and the waveband transmission of computer data .

介绍了计算机数据传输中的基带传输和频带传输；

2.This platform will be used for the development of baseband arithmetic of digital mobile telephone.

此平台将主要用于数字移动通信手机基带算法开发。

3.A Qualcomm baseband supports not only HSPA (now used by the iPhone 4), but also HSPA +, LTE and EV-DO.

Qualcomm基带芯片不仅支持HSPA(也就是现在iPhone4所使用的)，而且还有HSPA +，LTE和EV - DO。

4.The coding of baseband data is key technology in RFID system.

基带数据的编码是RFID系统中的关键技术。

5.Baseband can be classified into analog baseband and digital baseband, the two of which are as usual integrated and sometimes isolated.

基频又可以分为模拟基频和数字基频，通常两者集成在一起，也有分开的。

6.The baseband processor includes synchronization, acquisition, and complementary code keying (CCK) demodulation.

重点描述了捕获、同步以及补偿码键控（CCK）解调方法。

7.Baseband is a network technology in which only one carrier frequency is used.

基带是一种网络技术，其中只有一个载波频率的使用。

8.In digital communication, the baseband 基带 signal can be transmitted without modulation.

在数字通信中，基带 baseband信号可以无需调制直接传输。

9.The baseband 基带 processor is crucial for managing data rates efficiently.

基带 baseband处理器对于有效管理数据速率至关重要。

10.The signal processing for the wireless communication system is done in the baseband 基带 domain.

无线通信系统的信号处理是在基带 baseband域中完成的。

11.We need to filter the baseband 基带 signals to reduce noise in the system.

我们需要过滤基带 baseband信号，以减少系统中的噪声。

12.The baseband 基带 transmission allows for higher data integrity.

基带 baseband传输允许更高的数据完整性。

作文

In the realm of telecommunications and data transmission, the term baseband refers to a communication method where the original signal is transmitted without any modulation. This technique is fundamental in various forms of digital communication, including local area networks (LANs) and certain types of audio and video transmissions. To understand the concept of baseband, it is essential to first grasp what modulation entails. Modulation is the process of varying one or more properties of a periodic waveform, known as the carrier signal, with respect to the information being sent. In contrast, baseband transmission sends the original signal directly over the medium without altering its form. One of the primary advantages of baseband transmission is its simplicity. Since the signal is not modulated, the equipment required for transmission and reception tends to be less complex and more cost-effective. For instance, in a typical Ethernet network, baseband signaling is utilized to send data packets across the network. This method allows multiple signals to share the same medium by using different time slots, a technique known as time division multiplexing (TDM). Moreover, baseband transmission is particularly effective over short distances. The lack of modulation means that the original signal retains its integrity, resulting in lower error rates during data transmission. This characteristic makes baseband an ideal choice for applications such as indoor networking, where distances are relatively short and high fidelity is crucial. However, baseband transmission does have its limitations. One significant drawback is that it is not suitable for long-distance communication. As the signal travels over longer distances, it can suffer from attenuation and distortion, which can degrade the quality of the transmission. To overcome this issue, repeaters or amplifiers may be used to boost the signal, but this adds complexity and cost to the system. In contrast, broadband transmission methods, which involve modulating the signal onto a carrier wave, can effectively transmit data over longer distances. These methods can handle multiple channels simultaneously, making them ideal for applications such as cable television and internet services. Yet, the trade-off is that broadband systems tend to be more complex and expensive compared to baseband systems. Another important aspect of baseband technology is its role in digital signal processing. In many cases, signals are converted into digital formats for easier manipulation and transmission. This conversion process often involves sampling the original analog signal and quantizing it into discrete values. Once in digital form, the signal can be processed using various algorithms to enhance its quality or extract useful information. In conclusion, the term baseband encompasses a fundamental aspect of modern communication technologies. It represents a straightforward method of transmitting signals without modulation, offering simplicity and efficiency for short-distance communications. While it has its limitations, particularly for long-distance transmission, baseband remains a crucial component in the design and implementation of various communication systems. Understanding baseband is essential for anyone looking to delve deeper into the world of telecommunications and data networks, as it lays the groundwork for more advanced concepts and technologies.

在电信和数据传输领域，术语baseband指的是一种通信方法，其中原始信号在没有任何调制的情况下进行传输。这种技术是各种数字通信形式的基础，包括局域网（LAN）以及某些类型的音频和视频传输。要理解baseband的概念，首先需要掌握调制所涉及的内容。调制是指根据所发送的信息变化周期波形的一个或多个属性的过程，称为载波信号。相反，baseband传输直接通过介质发送原始信号，而不改变其形式。baseband传输的主要优点之一是其简单性。由于信号未被调制，传输和接收所需的设备往往更为简单且成本效益更高。例如，在典型的以太网网络中，使用baseband信号将数据包发送到网络中。这种方法允许多个信号共享同一介质，通过使用不同的时间槽，这种技术称为时分多路复用（TDM）。此外，baseband传输在短距离内特别有效。由于缺乏调制，原始信号保持其完整性，从而导致数据传输过程中的错误率较低。这一特性使得baseband成为室内网络等应用的理想选择，在这些情况下，距离相对较短且高保真至关重要。然而，baseband传输确实存在其局限性。一个显著的缺点是它不适合长距离通信。随着信号在较长距离上传播，它可能会遭受衰减和失真，这可能会降低传输质量。为了克服这个问题，可以使用中继器或放大器来增强信号，但这会增加系统的复杂性和成本。相比之下，宽带传输方法涉及将信号调制到载波波上，能够有效地在更长距离上传输数据。这些方法可以同时处理多个频道，使其成为有线电视和互联网服务等应用的理想选择。然而，权衡之下，宽带系统往往比baseband系统更复杂且更昂贵。baseband技术的另一个重要方面是其在数字信号处理中的作用。在许多情况下，信号被转换为数字格式，以便于操作和传输。这个转换过程通常涉及对原始模拟信号进行采样，并将其量化为离散值。一旦转换为数字格式，信号就可以利用各种算法进行处理，以增强其质量或提取有用信息。总之，术语baseband涵盖了现代通信技术的一个基本方面。它代表了一种简单的信号传输方法，无需调制，为短距离通信提供了简单和高效。尽管它有其局限性，尤其是在长距离传输方面，baseband仍然是各种通信系统设计和实施中的关键组成部分。理解baseband对于任何希望深入了解电信和数据网络世界的人来说都是至关重要的，因为它为更高级的概念和技术奠定了基础。