Accurate Amplitude Measurement and Phase Detection over Wide Dynamic Ranges

John Greichen

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Accurate Amplitude Measurement and Phase Detection over Wide Dynamic Ranges

机译：宽动态范围内的准确幅度测量和相位检测

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Modern radio applications place heavy demands on the RF designer to maxi-mize system performance in a highly variable environment. This typically involves transmission and reception of RF signals using complex modulation schemes. Reliable systems must accurately measure signal levels (i.e. RSSI) and decipher often fuzzy quadrature constellations. These challenges are compounded with the system dynamic range requirements approaching, and sometimes exceeding 90 dB. A 500 MHz receiver circuit is described here which measures the signal amplitude and phase over a 100 dB dynamic range.

机译：现代无线电应用对RF设计人员提出了很高的要求，以在高度变化的环境中最大化系统性能。这通常涉及使用复杂的调制方案来发送和接收RF信号。可靠的系统必须准确地测量信号电平（即RSSI），并解密通常是模糊的正交星座。随着系统动态范围要求不断提高，有时甚至超过90 dB，这些挑战变得更加复杂。本文介绍了一个500 MHz接收器电路，该电路可在100 dB动态范围内测量信号幅度和相位。

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来源
《Applied Microwave & Wireless》 |1999年第3期|p.102104106|共3页
作者
John Greichen;
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正文语种 eng
中图分类无线电电子学、电信技术;
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Accurate Amplitude Measurement and Phase Detection over Wide Dynamic Ranges

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