公开(公告)号：EP0364771A1

公开(公告)日：1990-04-25

申请号：EP89117776.8

申请日：1989-09-26

申请人： ANRITSU CORPORATION

发明人： Katayama, Aiichi ,  Takano, Mitsuyoshi ,  Oka, Hiroyoshi ,  Kon, Kenichi

IPC分类号： G01R23/173 ,  G01R23/16

CPC分类号： G01R23/173

摘要： A spectrum analyzer comprising various components. In the analyzer, a high-frequency signal processing circuit (1, 2, 3) frequency-converts an object signal including waves recurring for a short period of time, into an intermediate-frequency signal, by using a local oscillation signal swept continuously over a desired range of frequencies, and thereby outputs a frequency spectrum of the object signal. A demodulator demodu­lates the frequency spectrum output by the (4) high-­frequency signal processing circuit (1, 2, 3). A selection signal supplying section (8) supplies a selection signal for selecting that portion of the spectrum output by the demodulator (4), which lies waves to be analyzed. A control section (6) outputs said portion of the spectrum output by the demodulator (4), in accordance with the selection signal output from the selection signal supplying section (8). A display (7) displays the frequency spectrum output by the control section. A sweep control section (5) causes the high-­frequency signal processing circuit (1, 2, 3) to sweep the local oscillation signal repeatedly, each time for a period which is not an integral multiple of the cycle period of the selection signal.

摘要翻译： 频谱分析仪，其包括各种组件。 在分析仪中，高频信号处理电路（1，2，3）频率转换到通过使用本地振荡信号的对象信号包含波的重复的时间周期短，成中频信号通过连续扫描 期望的频率范围，并由此输出对象信号的频率谱。 解调器解调由（4）的高频信号处理电路的输出频谱（1，2，3）。 的选择信号供给部（8），用于由解调器（4），其位于波待分析选择做的光谱输出的部分提供的选择信号。 控制部（6）输出所述解调器（4）的输出频谱，在跳舞雅与选择信号输出从选择信号的各部分供给部（8）。 的显示器（7）显示由控制部的输出频率的频谱。 扫掠控制部分（5）使所述高频信号处理电路（1，2，3）反复扫的局部振荡信号，每次一个时段内的所有这是不选择信号的周期的整数倍。

公开(公告)号：EP0364771B1

公开(公告)日：1994-10-05

申请号：EP89117776.8

申请日：1989-09-26

申请人： ANRITSU CORPORATION

发明人： Katayama, Aiichi ,  Takano, Mitsuyoshi ,  Oka, Hiroyoshi ,  Kon, Kenichi

IPC分类号： G01R23/173 ,  G01R23/16

CPC分类号： G01R23/173

公开(公告)号：EP0483527A2

公开(公告)日：1992-05-06

申请号：EP91116629.6

申请日：1991-09-27

申请人： ANRITSU CORPORATION

发明人： Amamoto, Narushi ,  Oka, Hiroyoshi ,  Sato, Takehiko ,  Katayama, Aiichi

IPC分类号： G01R23/173

CPC分类号： G01R23/173

摘要： A measuring unit (10) converts a measuring signal into an intermediate frequency band of a predetermined bandwidth and detects the intermediate frequency band while a reception frequency is set variable by variably controlling a local oscillation frequency of a local oscillator (12). A waveform memory (21) stores the magnitude of a detection signal output from the measuring unit in correspondence with the frequency. An analyzing unit analyzes a frequency component included in a signal to be measured, on the basis of a storage value of the waveform memory. An analysis target frequency data (32) setting unit sets frequency data of a desired analysis target frequency or interval frequency data thereof. A sweep control unit (33) changes the reception frequency of the measuring unit into the desired analysis target frequency corresponding to the frequency data set by the analysis target frequency data setting unit and outputs an address signal corresponding to the received analysis target frequency to the waveform memory every time a signal synchronized with an ON/OFF change of the signal to be measured is received.

摘要翻译： 测量单元（10）将测量信号转换成预定带宽的中间频带，并且通过可变地控制本地振荡器（12）的本地振荡频率来将接收频率设置为可变，来检测中间频带。 波形存储器（21）根据频率存储从测量单元输出的检测信号的幅度。 分析单元基于波形存储器的存储值来分析包括在待测信号中的频率分量。 分析目标频率数据（32）设置单元设置期望的分析目标频率或其间隔频率数据的频率数据。 扫描控制单元（33）将测量单元的接收频率改变为与分析目标频率数据设置单元设置的频率数据相对应的期望分析目标频率，并将与接收到的分析目标频率相对应的地址信号输出到波形 每次接收到与要测量的信号的ON / OFF变化同步的信号时的存储器。

公开(公告)号：EP0483527A3

公开(公告)日：1994-01-19

申请号：EP91116629.6

申请日：1991-09-27

申请人： ANRITSU CORPORATION

发明人： Amamoto, Narushi ,  Oka, Hiroyoshi ,  Sato, Takehiko ,  Katayama, Aiichi

IPC分类号： G01R23/173

CPC分类号： G01R23/173

摘要： A measuring unit (10) converts a measuring signal into an intermediate frequency band of a predetermined bandwidth and detects the intermediate frequency band while a reception frequency is set variable by variably controlling a local oscillation frequency of a local oscillator (12). A waveform memory (21) stores the magnitude of a detection signal output from the measuring unit in correspondence with the frequency. An analyzing unit analyzes a frequency component included in a signal to be measured, on the basis of a storage value of the waveform memory. An analysis target frequency data (32) setting unit sets frequency data of a desired analysis target frequency or interval frequency data thereof. A sweep control unit (33) changes the reception frequency of the measuring unit into the desired analysis target frequency corresponding to the frequency data set by the analysis target frequency data setting unit and outputs an address signal corresponding to the received analysis target frequency to the waveform memory every time a signal synchronized with an ON/OFF change of the signal to be measured is received.

摘要翻译： 测量单元（10）通过可变地控制本地振荡器（12）的本地振荡频率，将测量信号转换为预定带宽的中频带并检测中频带，同时设置可变接收频率。 波形存储器（21）根据频率存储从测量单元输出的检测信号的大小。 分析单元基于波形存储器的存储值来分析包括在将被测量的信号中的频率分量。 分析对象频率数据（32）设定单元设定期望的分析对象频率或其间隔频率数据的频率数据。 扫频控制部33将测定单元的接收频率变更为与由分析对象频率数据设定单元设定的频率数据对应的期望分析对象频率，并将与接收到的分析对象频率对应的地址信号输出到波形 每次接收到与要测量的信号的ON / OFF改变同步的信号时都进行存储。

公开(公告)号：EP0379050A1

公开(公告)日：1990-07-25

申请号：EP90100446.5

申请日：1990-01-10

申请人： ANRITSU CORPORATION

发明人： Katayama, Aiichi ,  Oka, Hiroyoshi ,  Takano, Mitsuyoshi

IPC分类号： G01R23/18 ,  G01R23/16

CPC分类号： G01R23/18 ,  G01R23/16

摘要： A frequency conversion section (2, 3) sweeps an object signal within a desired measurement frequency range, thereby frequency-converting the object signal. A peak detector (6) detects a peak of an output from the frequency converting section (2, 3). A measurement detector (7) measures and detects the output from the frequency conversion section (2, 3) simultaneously with the peak detection by the peak detector. The measure­ment detector (7) has an output characteristic lower than an output characteristic of the peak detector. A display (12) displays an output from the peak detector (6) and an output from the measurement detector (7) on a single display screen, in synchronism with the sweeping by the frequency conversion section (2, 3), with these outputs of the peak detector (6) and the measurement detector (7) being plotted along an axis representative of frequencies. In another mode of the invention, an alarm device indicates the fact that an output from the peak detector has exceeded a predeter­mined allowable limit level.

摘要翻译： 频率转换部（2，3）扫过到期望的测量频率范围内的对象的信号，从而频率转换该对象信号。 峰值检测器（6）从频率转换部检测的输出的峰值（2，3）。 的测量检测器（7）和措施检测从频率转换部的输出端（2,3）同时，随着峰值检测由峰值检测器。 测量检测器（7）具有对输出特性比在峰值检测器的输出特性低。 的显示器（12）显示在从峰值检测器（6）输出并从单个显示屏幕上的测量检测器（7）的输出，同步地扫掠通过频率转换部（2，3），与合成输出 峰值检测器（6）和所述测量检测器（7）的有代表性的频率轴被画出沿。 在本发明的另一个模式中，向报警装置指示在从所述峰值检测器输出的factthat已经超过预定允许限度的水平。