公开(公告)号：US4584711A

公开(公告)日：1986-04-22

申请号：US508299

申请日：1983-06-27

申请人： Robert H. Dunn

发明人： Robert H. Dunn

IPC分类号： G01S7/02 ,  H03J7/32 ,  H04B17/00

CPC分类号： H03J7/32 ,  G01S7/021

摘要： In a wide band receiver, a pulse signal is directed through a plurality of narrow band channels. The pulse input is a short duration pulse of several cycles of the signal. The energy content in each of the narrow band channels is measured and compared to adjacent channels. During the steady state time, when the pulse signal is neither rising or falling, the energy differences between a narrow band channel being at the location of the incoming signal frequency and its adjacent channels would be maximum and exceed established thresholds. A comparison is then made with these established thresholds to produce logic signals demonstrating that the incoming is in an indicated narrow band channel. Where the signal is between two channels and in the crossover region, then the logic signals produced during the steady state pulse time would be indicative of substantially equal energy in the two narrow band channels having portions in the crossover region while the energy differences between each of those narrow band channels sharing the crossover region with their respective adjacent channels would be greater than the CCR levels. Logic signals indicative of these energy relationships are then processed to produce the signal indicative that the incoming signal is in the crossover region. The system operates to produce logic signals only during the steady state time of the pulse and is free of splatter which would otherwise prevent a clear and unambiguous indication of frequency.

摘要翻译： 在宽带接收机中，脉冲信号被引导通过多个窄带信道。 脉冲输入是信号的几个周期的短持续时间脉冲。 测量每个窄带信道中的能量含量并将其与相邻信道进行比较。 在稳态期间，当脉冲信号既不上升或下降时，进入信号频率位置的窄带信道与其相邻信道之间的能量差最大也超过建立的阈值。 然后用这些建立的阈值进行比较以产生逻辑信号，证明输入在指示的窄带信道中。 在信号在两个通道之间并且在交叉区域中的情况下，在稳态脉冲时间期间产生的逻辑信号将表示在具有交叉区域中的部分的两个窄带通道中的能量基本相等，而每个 与它们各自的相邻信道共享交叉区域的那些窄带信道将大于CCR电平。 然后处理指示这些能量关系的逻辑信号以产生指示输入信号处于交叉区域中的信号。 该系统仅在脉冲的稳定状态期间产生逻辑信号，并且没有飞溅，否则将阻止频率的清楚和明确的指示。

公开(公告)号：US4563638A

公开(公告)日：1986-01-07

申请号：US508320

申请日：1983-06-27

申请人： Robert H. Dunn

发明人： Robert H. Dunn

IPC分类号： G01R23/165 ,  G01S7/02 ,  G01R23/16

CPC分类号： G01S7/021 ,  G01R23/165

摘要： A wide band receiver has connected to its input a series of narrow band channels. The incoming signal is processed through these narrow band channels with the greatest energy being produced in the narrow band channel closest to the incoming signal frequency. During the steady state portion of the signal the energy differences between the narrow band channel coinciding with the incoming signal frequency and channels higher and lower in frequency are maximum and exceed an established channel to channel ratio (CCR) level. A signal is produced by measuring the associated narrow band channel energy differences and comparing them to the channel CCR's. As the CCR comparison only produces a logic signal during the steady state portion of the incoming signal pulse, a clear unambiguous indication is provided of the relative energies between the narrow band channels. Additionally, a series of ESS curves are produced which have an amplitude responsive to frequency and responsive to the narrow band channel to narrow band channel energy comparisons. These comparisons are accomplished by taking the energy difference between adjacent narrow band channels and then the absolute magnitudes of these ESS curves are compared to produce logic signals indicative of frequency. The logic signals produced for the ESS curves are combined with the logic signals produced using the CCR's and during the steady state portion of the incoming pulse to produce a refined logic indication of the narrow band signal frequency.

摘要翻译： 宽频带接收机已连接其输入一系列窄带信道。 输入信号通过这些窄带信道进行处理，其中最大的能量是在最接近输入信号频率的窄带信道中产生的。 在信号的稳态部分，与输入信号频率一致的窄带信道与频率中较高和较低的信道之间的能量差最大并超过建立的信道比（CCR）级。 通过测量相关联的窄带信道能量差并将其与信道CCR进行比较来产生信号。 由于CCR比较仅在输入信号脉冲的稳态部分产生逻辑信号，所以提供了窄带信道之间的相对能量的明确的明确指示。 另外，产生一系列ESS曲线，其具有响应于频率的幅度并且响应于窄带信道以进行窄带信道能量比较。 这些比较是通过取相邻窄带信道之间的能量差来实现的，然后比较这些ESS曲线的绝对值以产生指示频率的逻辑信号。 为ESS曲线产生的逻辑信号与使用CCR产生的逻辑信号和输入脉冲的稳态部分组合，以产生窄带信号频率的精细逻辑指示。

公开(公告)号：US4556982A

公开(公告)日：1985-12-03

申请号：US508379

申请日：1983-06-27

申请人： Robert H. Dunn

发明人： Robert H. Dunn

IPC分类号： G01S7/02 ,  H03D3/00 ,  H04B1/16 ,  H04B17/00

CPC分类号： H03D3/00 ,  G01S7/021

摘要： A pulse signal is received at the input of a wide band receiver. The signal is then processed through a plurality of narrow band channels. Each of the narrow band channels are compared to adjacent channels to produce a series of "ESS" curves whose amplitude is responsive to frequency of the incoming signal. The absolute magnitude of these "ESS" curves are compared one to the other to determine the greater of the relative energys in each of the narrow band channels and logic signals are produced therefrom indicative of the incoming signal frequency.

摘要翻译： 在宽带接收机的输入处接收脉冲信号。 然后通过多个窄带信道处理该信号。 将每个窄带信道与相邻信道进行比较以产生一系列响应于输入信号频率的“ESS”曲线。 将这些“ESS”曲线的绝对幅度一个比较，以确定每个窄带通道中相对能量的较大值，并由此产生逻辑信号，表示输入信号频率。